Samir Nasri sustained a hamstring injury today in Arsenal's FA Cup match against Huddersfield while chasing a punt from goalkeeper Manuel Almunia. He pulled up limping and went to ground, and manager Arsène Wenger immediately replaced him with Tomas Rosicky.
Wenger's outlook on the injury after the match was grim. When asked by the press about Nasri's injury, Wenger said "it looks to be a serious hamstring injury", and that he would miss "three weeks".
Nasri, of course, has been at the center of much of Arsenal's success this year, scoring fabulous goals against Fulham and Manchester City. He is scoring goals at a tremendous rate and providing smooth passing interchanges with Cesc Fabregas, Robin van Persie, and Theo Walcott in Arsenal's best attacking four. His loss will have a big impact on Arsenal's next few weeks, where they have matches against Everton, Newcastle, Wolverhampton, and Barcelona.
Nasri's injury is the latest in a long line of muscle problems for Arsenal players over the past few years. Cesc Fabregas injured his hamstring in a game against Sunderland in September, and missed a month.