György Grozer (born 27 November 1984), also known as Georg Grozer or by his nickname Hammerschorsch, is a German professional volleyball player of Hungarian origin. He currently plays as an opposite spiker for Shanghai Bright and the Germany national team.
Grozer is widely known by the nickname “Hammerschorsch”, a German compound word combining Hammer (“hammer”) and Schorsch, a German diminutive of Georg that reflects his powerful attacking style.
Personal life Grozer was born in Budapest, Hungary. His father, György Grozer Sr.† was a former volleyball player and a coach. Grozer has two daughters, Leana and Loreen, from his first marriage. He is currently married to Czech volleyball player Helena Grozer (née Helena Havelková).
Career Club Grozer began his volleyball journey in Hungary before moving to Germany in 2002 to play for Moerser Sportsclub.
He later played for VfB Friedrichshafen, where he was crowned national champion on two occasions in 2009 and 2010.
After moving to the Polish league, he was Polish champion in his second season (2011/2012) with Asseco Resovia Rzeszów.
He then moved to Belgorod where, in the early stages of the season, he played a major role in the team's success in the Russian championship and in the National Cup of Russia. This season he won the Super Cup and the National Cup in Russia, and was crowned the top club team in Europe with Belgorod.Gyorgy Grozer: Będę grał w Lokomotivie Biełgorod – siatka.org – 2012-04-22.
From 2017 to 2020, Grozer returned to Russia Super League, joining Lokomotiv Novosibirsk, before playing for Zenit St. Petersburg.
He then spent three seasons in the Italian SuperLega, suiting up with Gas Sales Bluenergy Piacenza and Vero Volley Monza between 2020 and 2023.
Following a one-year stint in Arkas Spor in the Türkiye Efeler Ligi, he played for Aluron CMC Warta Zawiercie during the 2024/2025 season.
For the 2025/26 season, Grozer moved to China to play for Shanghai Bright. He was part of the Shanghai team that finished third in the Chinese Volleyball Super League.
After the conclusion of the Chinese season, Grozer joined Jakarta LavAni Livin' Transmedia for the final stage of the 2026 Proliga. He helped LavAni win the championship.
For the 2026–27 season Grozer signed with Saudi Arabian club Al-Ittihad Club.
National team
2007 After gaining German Citizenship, Grozer began playing for the national team in 2007. He made his debut that year at the CEV European Championship, where Germany finished 5th.
2008 In the same year, Germany earned a place in the World Olympic Qualification Tournaments. Germany hosted the first tournament of World Olympic Qualification in Düsseldorf from 23 to 25 May 2008, where they emerged as winners and secured direct qualification for the 2008 Summer Olympics in Beijing. György Grozer was part of the German squad that won the qualification tournament. However, he was not selected for the final roster that competed at the Summer Games.
2009 A year later, in 2009, he was part of the German squad that won gold at the CEV European League where he also earned the Best Blocker award. He was also part of 2009 European Championships squad. The Die Adler finished 6th in the competition.
2010 In 2010, Germany secured qualification for the FIVB Men's Volleyball World Championship by finishing runners-up in Pool I of the European qualifiers. Grozer scored a total of 22 points, emerging as Germany's fourth-best scorer behind Max Günthör, Björn Andrae, and Jochen Schöps. This marked Grozer's first World Championship qualification and his first World Championship appearance with the German national team.
World Championships 2010 The opposite made his debut at the World Championships in 2010 that was held in Italy.
Germany was drawn into Pool F for the pool play stage of the 2010 FIVB Men's Volleyball World Championship, alongside Poland, Serbia, and Canada. Germany finished third in the pool with a 1–2 win–loss record, tied on points with Serbia and Canada but edged out on set and point ratios. They opened their campaign with a straight-sets loss to Serbia, followed by a tightly contested five-set defeat against eventual pool winners Poland. Germany closed the pool stage with a dominant 3–0 victory over Canada, which secured their advancement to the second round. In the second round (Pool G), Germany faced Italy and Puerto Rico. They began with a convincing 3–0 win over Puerto Rico before falling to Italy in four sets. Germany finished second in the pool, earning the guaranteed progression to the third round.
During the third round (Pool R), Germany competed against Brazil and the Czech Republic. They swept the Czech Republic in straight sets but were overpowered by Brazil in a 3–0 loss, placing Germany second in the pool and moving them into the classification semifinals.
In the 5th–8th place semifinals, Germany faced the United States and suffered a 3–0 defeat (25–22, 25–20, 25–23), which relegated them to the 7th place match. Then, Germany was defeated again, this time by Bulgaria, losing 3–0 (26–24, 26–24, 25–21). Germany finished 8th overall in the tournament.
Individually, György Grozer contributed solidly in his maiden World Championship appearance, finishing with 104 total points, comprising 95 spikes, 7 blocks, and 2 aces, and ranking 19th overall among scorers. He emerged as Germany's second-highest scorer at the tournament, behind only Robert Kromm who amassed 108 points and ranked 12th overall.
Despite the loss, Germany's 8th-place finish in 2010 marked the nation's best World Championship result since reunification, and the best overall since East Germany placed 4th at the 1974 World Championship in Mexico.
2011 Grozer could not help the German team because of an injury.
2012 2012 saw an increase of tournament for Germany.
World League The opposite was included in the roster for the 2012 World League, after Germany qualified by finishing among the top 13 in the 2011 edition. The team went on to finish fifth, marking Germany's best performance in the competition to date.
2012 Summer Olympics – Men's European qualification Germany competed in the European Olympic Qualification tournaments held in France and Bulgaria in an attempt to qualify for the London 2012 Olympics. The tournament winner qualified directly for the Olympic Games.
Germany advanced from Pool A to the crossed semi-finals and final, eventually finishing 1st place in the tournament.
Germany progressed through the semifinals to face Italy in the final at Arena Armeec in Sofia. Italy secured direct qualification to the London 2012 Olympics by defeating Germany in a dramatic five-set final, 3–2 (25–22, 26–24, 19–25, 22–25, 15–12). György Grozer was a standout performer for Germany, scoring 28 points in the final, the highest of any player in the match.
Across the tournament, Grozer played 9 matches (29 sets) during the tournament, scoring 135 points at an average of 4.66 points per set. He ranked second aming all scorers behind Spain's Iban Perez Manzanares.
2012 World Olympic Qualification Germany secured their ticket to the London 2012 Olympics by triumphing at FIVB Men's World Olympic Qualification Tournament held in Berlin. The team performed strongly in pool play, finishing first with 8 points from 3 matches, posting a 3–0 win–loss record. Germany opened with a 3–0 victory over India (25–16, 25–19, 25–15), followed by a hard-fought 5-set win against Cuba (25–21, 25–17, 21–25, 17–25, 20–18). They closed pool play with a 3–1 triumph over the Czech Republic (25–22, 23–25, 25–23, 25–21). The team finished with a total of 9 sets won and 3 lost, outscoring opponents 281–247 across all matches. This dominant performance helped secure Germany's qualification for the 2012 Olympics.
Individually, György Grozer scored 63 points in the tournament, including 45 spikes, 7 blocks, and 11 aces, ranking him as Germany's top scorer and the second-highest overall behind Jan Stokr of Czech Republic (70 points).
London Olympics The indoor volleyball tournament was held at the historic Earls Court Exhibition Centre in West London from July 29 to August 12, 2012.
Germany was drawn into Pool B with Russia, USA, Brazil, and Serbia.
Preliminary Round Germany opened their campaign against the eventual gold medalists, Russia. In a tightly contested first set that went into overtime, Germany held set points but ultimately fell 29–31. Grozer finished as the team's top scorer with 10 points (8 kills, 2 blocks), but the team was swept 0–3 (29–31, 18–25, 17–25).
Two days later, Germany faced the defending 2008 Olympic champions, Team USA. The American side was led by Clayton Stanley and Matt Anderson. Grozer managed 12 points (8 kills, 4 aces), but Germany lacked the offensive balance to challenge the Americans, falling 0–3 (23–25, 16–25, 20–25).
In a preliminary match against Serbia, Grozer led Germany back from a two-set deficit to secure a 3–2 victory (22–25, 27–29, 25–18, 25–20, 20–18) and preserve the team's tournament run. He scored a match-high 39 points, setting the record for the highest single-match individual score in men's Olympic volleyball history.
Grozer accounted for 44.2% of Germany's total attacks (57 of 129 attempts).. He recorded a 50.9% success rate (29 kills) and a 40.4% hitting efficiency, while adding seven blocks, three aces, and eight digs. His 39 points also surpassed the combined total of Serbia's top two scorers, Aleksandar Atanasijević (22) and Miloš Nikić (16). As of 2026, it remains the second-highest single-match scoring performance in the Olympic rally-scoring era behind Barbara Jelic's 44 points for Croatia at the Sydney Olympics.
In their next pool match, Germany defeated Tunisia 3–0 (25–15, 25–16, 25–16) to secure a spot in the knockout stage, with Grozer contributing 11 points (8 kills, 1 block, and 2 aces). With quarterfinal qualification secured, head coach Vital Heynen rested Grozer in the final group match against Brazil, which Germany lost 0–3.
Quarterfinals Germany was eliminated in the quarterfinals on August 8, 2012, losing 0–3 (20–25, 16–25, 14–25).
Grozer led Germany with 12 points, recording 11 kills on 28 swings alongside seven attack faults as Germany was limited to a 19.2% hitting efficiency. Germany finished the tournament tied for fifth place with Argentina, Poland, and the United States. Grozer concluded his Olympic campaign with 84 total points (65 kills, 11 blocks, and 8 aces), trailing tournament leaders Maxim Mikhaylov (148) and Tsvetan Sokolov (129) who both played in the medal rounds.
In a 2021 interview with Volleyball World, Grozer reflected on his debut Olympic experience and described it as a career highlight: "The London 2012 Games was the biggest pleasure for me and I am thankful that I could be a part of it and enjoy the super atmosphere and the special energy of the Olympics. I was young. We were young and maybe the result would be different if we played again now, but anyway it was amazing for me,” he said.
2013
Eurovolley Germany entered the 2013 European Championship. The team advanced to the Quarterfinals, where they were once again stopped by Bulgaria in a tight 1–3 loss (30–28, 25–27, 22–25, 20–25). In a match where Germany needed their star opposite to dominate, Grozer faced heavy defensive pressure and struggled to find his usual efficiency.
Scoring: Grozer scored 16 points (12 attacks, 3 aces, 1 block)
He recorded a 26% attack success rate (12 kills on 46 attempts) with five attack errors and three blocked attacks. The tournament's official statistics ranked Grozer among the leading individual performers:
He ranked 3rd among Best Scorer ranking with 172 total points, behind Emre Batur of Turkiye and Bram Van Den Dries of Belgium. He was the 2nd ranked server with 19 aces (0.59 aces per set) behind Dmitry Muserskiy. He ranked 9th in blocking with 23 kill blocks (0.72 blocks per set)
2014