Roberto Manuel Sierra Giménez (born 21 May 1996) known as Rober Sierra, is a Spanish professional footballer who plays as a midfielder for Liga I club Argeş Piteşti.
Career Rober started his youth career with Levante. In 2015 he was promoted to Atlético Levante, but in January 2016 he was sent on loan to Mallorca B until the end of the season.Dos fichajes para el Mallorca B In the summer of 2016 he returned in Levente, but later decided to leave the team and join Ontinyent in Segunda División B.Rober Sierra convence a Miguel Ángel Mullor y se queda en el Ontinyent After spending two seasons with the team he was transferred in Peralada for a season, before joining Real Oviedo II. In the summer of 2021 he moved to Formentera.Rober Sierra se convierte en el séptimo fichaje del Formentera
On 20 June 2022, he moved to Finland and joined Veikkausliiga club Inter Turku on a 1+1 year contract.Keskikenttäpelaaja Rober Sierra vahvistaa FC Interiä
In January 2023 Rober signed with the Bulgarian First League team Spartak Varna.Спартак Варна подписа с испански полузащитникEl valenciano Rober Sierra competirá en la primera división de Bulgaria
Career statistics Rober Sierra stats, lapreferente + Appearances and goals by club, season and competitionClubSeasonLeagueNational cupOtherTotalDivisionAppsGoalsAppsGoalsAppsGoalsAppsGoalsMallorca B2015–16Tercera División30——30Ontinyent2016–17Tercera División380—604402017–18Segunda División B251—140391Total631—200831Peralada2018–19Segunda División B350—10360Oviedo B2019–20Segunda División B222——2222020–21Segunda División B250——250Total472——472Formentera2021–22Segunda Federación320——320Inter Turku2022Veikkausliiga14020—160Spartak Varna2022–23Bulgarian First League17010—180CSA Steaua București2023–24Liga II24240—2822024–25Liga II29100—291Total53340—573Argeş Piteşti2025–26Liga I40340—4432026–27Liga I6000—60Total46340—503Career total31091102103429
Honours Ontinyent Copa Federación runner-up: 2017–18
Inter Turku Suomen Cup runner-up: 2022
References