Nwaneri joins growing Arsenal injury listpublished at 13:57 Greenwich Mean Time 6 January
Saka's not the only Arsenal attacker set for a spell on the sidelines.
Raheem Sterling has missed the last five matches with a knee injury, while Kai Havertz missed Saturday's draw against Brighton through illness.
Ethan Nwaneri, Arsenal's scorer on the south coast, had to be taken off at half-time with a 'muscular issue' and Arteta appeared downbeat about the teenager's injury in his post-match press conference.
It leaves the Gunners seriously short on options up front.