Marco Zwyssig (born 24 October 1971) is a Swiss former professional footballer who played as a centre-back. He is best remembered for his time at FC St. Gallen and FC Basel. He also played for the Switzerland national football team. Following his retirement from active football Zwyssig works partly independently, partly as a course leader and lecturer in adult education. Football career 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, accieved 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 Zwissig then moved to Austrian Bundesliga club Wacker Tirol in 2001, where he won the Austrian championship in their 2001–02 season. Zwyssig had experienced a difficult time in Innsbruck. At first the wages were not paid on time and then not paid at all. Wacker Tirol filed bankruptcy and they were forced to sell their most valuable players; Zwyssig inevitably left the club in the winter break of that season. Unavoidably, he had to take legal action against them. Basel Zwyssig signed for FC Basel in January 2002 and the FCB management transferred CHF 1.5 million as a