Mathis Bolly was born on 14 November, 1990. He is a Norwegian–Ivorian footballer who plays as a midfielder for Greuther Fürth. Hailing from Oslo, Bolly made his professional debut for the Tippeligaen side Lillestrøm. He represented Norway at youth international level, but chose to represent Ivory Coast at senior level. With an Ivorian father and a Norwegian mother. He grew up at Holmlia in Oslo, and youth football for Lyn, Oppsal and Holmlia before transferring to Lillestrøm in 2008. He made his debut for the first team in the Tippeligaen match against Stabæk and played two matches in his first season with the club.
Mathis made his Bundesliga debut in the match against Mainz 05 when he came on as a substitute. He started the next match against Bayern Munich on 9 March 2013, where he also scored one of Fortuna Düsseldorf’s goals in the 3–2 loss. The next week, Bolly scored another goal when Fortuna Düsseldorf drew 1–1 away against VfL Wolfsburg. Fortuna Düsseldorf was relegated after the 2012–13 season, but he stayed with the team when they played in the 2. Bundesliga in the following season.
Mathis played three matches for the Norwegian under-19 team in 2009, and was called up for the under-21 team in February and March 2013. He was also included in the Norwegian preliminary squad for the 2013 UEFA European Under-21 Football Championship, but withdrew from the squad when he in May 2013 was called up for the Ivory Coast national team for the World Cup qualifiers against Gambia and Tanzania. His former manager at Lillestrøm, Henning Berg, stated that it was a big loss for Norway and that Bolly could have been an important player for the national team in the future. He played his first game for the Ivory Coast against Gambia on 8 June 2013.
He played his second match for Ivory Coast in the friendly match against Mexico in August 2013, playing alongside Didier Drogba. Mathis was an unused substitute in the decisive play-off match against Senegal when Ivory Coast qualified for the 2014 World Cup. He was selected to represent the Ivory Coast at the 2014 Fifa World Cup in Brazil, and got his World Cup debut as a second-half substitute in the Ivory Coast’s second group game against Colombia.