Arsenal striker Eduardo has suffered a setback following his return to first-team action with the news that he will be out for two weeks.
The Croatia international made his return for the Gunners on Monday night following the broken fibula and dislocated ankle injury he sustained last February.
Eduardo netted a brace on his comeback, helping Arsenal to a 4-0 FA Cup win over Cardiff City, and was replaced by manager Arsene Wenger on 67 minutes.
It has since emerged that the 25-year-old sustained a minor hamstring injury and will now be sidelined for a fortnight.
Wenger told the club's official website: "Eduardo is out for two weeks.
"He picked up a hamstring injury two minutes before I took him off. What a nightmare.
"Nobody knows how it happened but I knew straight away after the game it would be a two-week job.
"It is nothing like he had before but I do know that little setbacks like this are part of being nine months out.
"After that long out, nobody plays six months on the trot. It is impossible.
"But at the same time it is a blow because, of course, he can score goals. He had shown that on Monday night."