Mikel Arteta admits he doesn't know how soon Kieran Tierney will be back for Arsenal, admitting the Gunners missed him on Thursday night.
Tierney has become an increasingly important player for Arsenal this season, both in defence, but crucially going forward. A muscle issue kept him out of the Gunners' 0-0 draw with Crystal Palace, and Arsenal were noticeably less effective in attack.
Arteta provided an update on Tierney following the fixture, saying: "I don't know [when he will be back]. He is going to have an MRI scan and we'll see how he is." On how much Arsenal missed him against the Eagles, he added: "He's a real threat and the way we are playing and the way we attack on that left-side, he's a really important player.
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