By Chris Harris

Arsenal will probably have to take on Barcelona at Emirates Stadium without William Gallas.

The French defender has been sidelined by a calf problem since the 1-0 win over Liverpool on February 10 and Arsène Wenger admitted in an interview with Arsenal TV Online on Thursday that he was "concerned" about his compatriot's "endless" injury.

Gallas has already been ruled out of the next two Premier League games against West Ham and Birmingham. The first leg of the Champions League Quarter-Final follows on March 31 and Wenger admits that Gallas is unlikely to recover in time to face Barcelona.

"I hope he will play again soon, but at the moment it does not look too good," said the manager.

"He will play some part before the end of the season, but will he be ready to play against Barcelona? That is another question mark. I would say he is already at 80 per cent out for the first leg.

"But he should play again before the end of the season."

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 19 Mar 2010