Marco Zwyssig

Gossau

Zwyssig played his youth football with FC St. Gallen coming through the ranks up to their U-21 team. In 1992, as he started studying business economics, he left the club and joined local amateur club FC Gossau in the third tier of Swiss football. Here he played as centre back directly behind player-coach Roger Hegi. They were champions of group 4 and, after the play-offs, achieved promotion at the end of the 1992–93 season. After two years in the second tier, Gossau suffered relegation, but in the following 1995–96 season again won the group 4 championship and again achieved promotion in the play-offs.

St. Gallen

At this point FC St. Gallen hired Hegi, who had retired from his active playing career, as their new head-coach. Hegi persuaded Zwissig to come with him to play with St.Gallen in the 1996–97 Nationalliga A. He did, signing a semi-professional contract and he achieved to become a regular player immediately. After graduating in 1997, he signed his first professional contract. Under Hegi's successor Marcel Koller, Zwyssig remained regular starter and in the 1999–2000 Nationalliga A they won the Swiss championship. Thus, they qualified for the next season's Champions League third qualifying round, but here they were beaten 4–3 on aggregate by Galatasaray. St. Gallen continued in the UEFA Cup first round, beating Chelsea 2–1 on aggregate they advanced to the second round, but were beaten 3–2 on aggregate by Club Brugge.

Wacker Tirol…

Zwyssig studied business economics with a focus on marketing at the University of St. Gallen and graduated in 1997. Following his retirement from active football Zwyssig worked partly independently, partly as a course leader and lecturer in adult education. On 11 June 2021 the ASF-SFV announced that as of 1 July 2021 Zwyssig would be the Footeco boss for the Zurich and St.Gallen regions and is responsible for the development, support and observation of players and coaches at Footeco and U-15 level.

Gossau Promotion to Nationalliga B: 1992–93, 1995–96 St.Gallen Swiss Super League: 1999–2000 Wacker Tirol Austrian Bundesliga: 2001–02 Basel Swiss Super League: 2001–02, 2003–04, 2004–05 Swiss Cup: 2002–03,