Former German international Britta Carlson of women's Bundesliga team VfL Wolfsburg has decided to call time on her playing career. Carlson, who won the UEFA European Championship in 2005, announced her decision after the 5-1 defeat at home to her former club Turbine Potsdam on Wednesday evening.

"I didn't want to make a fuss about it, that's not my way. It was a tough decision to make, but physically I just can't carry on playing at this level," she explained, in reference to the persistent knee problems that have dogged her in recent years.

The 30-year-old will continue to work within the sport however, both as an ambassador for the FIFA Women's World Cup Germany 2011 and as a member of the Wolves' coaching staff. "It's a new chapter in my life that's beginning now," she continued. "I'm delighted to be a World Cup ambassador and hope to help make the tournament an unforgettable experience for the whole of Germany."

The defender played 31 times for her country, scoring four goals. Her debut came on 4 March 2004 in the 1-0 defeat to China PR, and she won her last cap on 12 Match 2007 in the 3-0 win over Denmark.