Arsenal have announced Alexandre Lacazette will be out for six weeks after knee surgery.
After a bright start to his Arsenal career, goals had dried up for the France international and late on in Saturday’s north London derby, he missed a gilt-edged chance to equalise when through one-on-one.
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.
Arsenal 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.