Portimao, Portugal - Ivory Coast defender Arthur Boka has renewed his contract at VfB Stuttgart until 2012, the German Bundesliga club said on Thursday.

Boka, 25, came to Stuttgart in 2006 from French side Racing Strasbourg and has played 51 Bundesliga for the 2007 champions. His original deal ran until 2010. Stuttgart made the announcement at a winter break training camp in Portugal. (dpa)