The Arsenal manager, Arsène Wenger, last night expressed fresh concern over Tomas Rosicky’s injury, admitting he could give no guarantees as to when the midfielder will return to action. Rosicky has not played since limping off in Arsenal’s 3-0 FA Cup victory over Newcastle on January 26 with a hamstring tear.Wenger initially insisted the midfielder would return in “days, not weeks” but after it was discovered that the tendons in Rosicky’s leg had come loose from the hamstring – requiring an operation which forced him to miss Euro 2008 – the comeback date was put back to this month.Delays in the recovery process then saw the 27-year-old’s expected return shift to Christmas but he may now not return until next year. “We are a little bit speechless on [Rosicky’s injury] because we feel it is all going well but there is a problem of recoordinating his muscle with the exercises he does,” said Wenger. “Nobody at the club can tell me whether he will be back on November 10, December 10 or December 31. Nobody knows with him.” Share on Facebook Arsenal Topics Sachin Nakrani Fri 26 Sep 2008 19.01 EDT @SachinNakrani This article is more than 10 years old Share via Email Premier League Arsène Wenger This article is more than 10 years old Arsenal Rosicky injury mystery leaves Wenger speechless Shares00 Share on Twitter First published on Fri 26 Sep 2008 19.01 EDT news read more