Kay Voser

Grasshopper Club

Voser started his youth football with local amateur club FC Fislisbach. In summer 1997 he moved to the youth department of Grasshopper Club, advancing through the ranks and for the 2005–06 season he advanced to their U-21 team, who as the time played in the 1. Liga the fourth tier of Swiss football. During that season he also played three games for their first team under head coach Krasimir Balakov. His debut was on 26 March 2006 as Grasshoppers lost 1–0 at home against Schaffhausen. He then advanced to their first team and played six years for them. At the end of May 2011 his contract expired.

Basel

On 31 May 2011, Voser moved from GC to Basel on a free transfer, signing a three-year contract. He joined Basel's first team during their 2011–12 season under head coach Thorsten Fink. To the beginning of their 2011–12 season Voser was member of the Basel team that won the 2011 Uhrencup, beating both Hertha Berlin 3–0 and West Ham United 2–1, to lead the table on goal difference above Young Boys. After playing in three test games and in both Uhrencup matches, Voser played his domestic league debut for the club in the away game in the Stadion Wankdorf on 16 July 2011 as Basel played a 1–1 draw with Young Boys. But after just six league matches and one cup match Voser suffered an injury and had to undergo surgery on his foot and this kept him out of training for the remainder of the season. At the end of the 2011–12 season he won the Double with…

Voser played his Swiss U-16 debut on 26 August 2002 in the 2–2 away draw against the German U-16 team. He made his Swiss U-21 debut on 7 February 2007 in the 4–0 away defeat against the French U-21 team.

From April 2019, Voser completed an internship as a sports journalist at the Tages-Anzeiger. In May 2021 Schweizer Fernsehen announced that they had hired Kay Voser as new member of their Super League expert team.

Basel

Swiss Super League champion: 2011–12, 2012–13, 2013–14 Swiss Cup winner: 2011–12 Swiss Cup runner-up: 2012–13, 2013–14 Uhrencup winner: 2011, 2013 Zürich

Swiss Challenge League champion and promotion: 2016–17 Individual

Swiss Super League Team of the Year: 2013–14