Aaron Ramsey could have played his last game for Arsenal after he was forced off by injury against Napoli.
The Welshman pulled up sharply holding the back of his leg in the first-half of Thursday's Europa League quarter-final second leg.
Ramsey now faces an anxious wait to discover the extent of the injury as a hamstring pull or stain could rule him out for the rest of the season.
The 28-year-old midfielder will leave the club at the end of the season to join Italian side Juventus on a free transfer.
There are now fears that he could have played his last game for the Premier League side if the injury is serious.
Arsenal have five league games remaining this campaign and the possibility of three Europa League ties.
The Europa League final in Baku is on May 29, just 41 days from now.
