Arsene Wenger expects key Arsenal duo Cesc Fabregas and Theo Walcott to be sidelined for around 10 days.
Fabregas aggravated a hamstring problem after coming on as a substitute to inspire the Gunners to a 3-0 victory over Aston Villa
Wenger’s captain was taken off after a decisive 27-minute cameo but it was initially unclear whether he would be ruled out for just a few days or a number of weeks.
The Spain international midfielder was not fit enough to feature against Portsmouth and Wenger has now confirmed he will also miss the FA Cup clash with West Ham and the Premier League match at home to Bolton next Wednesday.
Fabregas could then return for the visit of Everton to Emirates Stadium on 9th January.
The England winger, who has not been able to put together a run of consecutive appearances this season, is struggling with a side injury.
“Let’s say the only question mark we have is does Cesc make Everton or not,” said Wenger.
“Walcott is a ripped muscle and about the same, 10 to 12 days.”