The 2017–18 Mohun Bagan FC season was the club's 11th season in I-League and 128th season since its establishment in 1889. They finished 3rd in the I-League and runners-up in the Calcutta Football League. Mohun Bagan reached the semifinals of the Super Cup where they were defeated by Bengaluru.

Sanjoy Sen resigned as the coach of Mohun Bagan on 2 January 2018 following three home draws and a defeat against Chennai City placing the team in 4th position, virtually ending their title hopes. Shankarlal Chakraborthy was appointed as head coach for the remainder of the season.

Their title hopes however did stay intact till the last fixture of the season where they could have won the title had other results gone in their favour, but it was not to be and Minerva Punjab ultimately clinched the title. Despite a midseason coaching change and injuries to key players like Sony Norde and Yuta Kinowaki during the 2017–18 season, they won both the home and away fixtures against arch-rivals East Bengal.

Sponsor As of 3 December 2017 Sponsors Type Sponsor's Name Sponsor Co-Sponsor M.P Birla Cement, Nilkamal, Floral, Ripley Kit Sponsor Shiv Naresh

Players

Current squad

Competitions

Calcutta Football League

Note: 1=These teams got walkover against Southern Samity and they got 3 point each.

I-League

Table

Results by round

Fixtures & results

Super Cup

Round of 16

Quarter final

Semi final

Player statistics

Goal scorers PlayerCFLI-League Super CupTotal1Aser Pierrick Dipanda0134172Kromah62083Kamo Bayi70074Akram Moghrabi04155Nikhil Kadam2116Azharuddin Mallick4006Sheikh Faiaz0213 7Kingsley Obumneme0202Sony Norde020Shilton D'Silva2008Manandeep Singh010 1Chesterpaul Lyngdoh 100Own Goals0101Total2228757

Technical staff {| class="wikitable" |- ! Position ! Name |- | Chief coach | Sankarlal Chakraborty |- | Assistant coach

| Goalkeeping coach | Arpan Dey |- | Physical Trainer | Samiran Bag |- | Physiotherapist | Abhinandan Chatterjee |- | Club Doctor | Dr. Protim Roy |- | Team Manager | Satyajit Chatterjee

Awards

Player Player Award Tournament Source22Best Goalkeeper of the Tournament 9Highest Scorer of the Tournament

References