Jurrien Timber will miss Arsenal's final Premier League game of the season against Southampton after undergoing ankle surgery on Tuesday.
The Netherlands full-back was absent from Sunday's 1-0 win against Newcastle and manager Mikel Arteta said on Wednesday he would be "out for a few weeks".
Timber, 23, has played 48 times across all competitions for Arsenal this term after missing the majority of last season with an ACL anterior cruciate injury.
"With Jurrien, you understand that he was coming back from an ACL one year out, and to have this season after an ACL, it's incredible," said Arteta.