American midfielder Stuart Holden has undergone another operation to repair ligaments in his right knee and will be sidelined for six to nine months.
Bolton, Holden's club in England's second-tier League Championship, made the announcement Tuesday, eight days after the 28-year-old lasted less than a half-hour with the Bolton under-21 team against Everton. That was his first match since tearing his right anterior cruciate ligament during the United States' 1-0 victory over Panama in the CONCACAF Gold Cup final on July 28.
Holden's injury troubles began when he broke his right leg on a tackle by the Netherlands' Nigel de Jong during an exhibition game in March 2010. He returned to make the U.S. World Cup team and appeared as a late substitute in the Americans' opener against England.
He injured his left knee against Manchester United during a tackle by Jonny Evans in March 2011, returned from surgery for a League Cup match against Aston Villa that September, then needed more surgery eight days later.