The midfielder was forced off in the second half of the Gunners’ 2-1 FA Cup quarter-final win at Manchester United on Monday and Wenger revealed that the England international is set for a spell on the sidelines with a “classic” hamstring problem.
Wenger, whose side host West Ham United in the Premier League on Saturday, admitted that the injury setback was a frustrating blow for the 21-year-old midfielder.
Asked about Oxlade-Chamberlain, Wenger told a news conference on Friday morning: “It’s a hamstring injury. He’ll be out for three to four weeks.
“It’s frustrating for him but he’s played more games this season than before. He’s shown his importance.”
The Frenchman went on to confirm that midfielder Mathieu Flamini is back available after recovering from a hamstring strain, while defender Gabriel Paulista (hamstring) is due to return to training on Sunday.
Mikel Arteta (ankle), meanwhile, was set to return to full training on Friday morning. “He’s back in full training today,” said Wenger of Arteta. “I think he’ll return in three weeks.”
Wenger was then quizzed on Jack Wilshere and the midfielder’s recovery from a minor ankle operation, but the Arsenal boss refused to put a timescale on his rehabilitation.
“It’s very difficult to say when he will be back. We have to respect his recovery,” said Wenger of Wilshere.
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