Arsenal striker Alexandre Lacazette is out for up to six weeks after undergoing minor knee surgery.

The 26-year-old was expected to start in the Europa League against Ostersunds on Thursday but he is now set for a spell on the sidelines.

The Gunners said in a statement: "Striker Alex Lacazette had an arthroscopy on his left knee in London on Tuesday morning.

"The minor procedure was a success and he will now undergo a period of rehabilitation.

"It is envisaged that he will return to the squad within four to six weeks."