The striker suffered an ankle injury and had been wearing a protective boot. It may be the 23-year-old who Arteta has refused to name.
On March 15, Arteta claimed Nketiah was a few weeks away from returning. Sunday's match would tie into that timeline and Nketiah was also seen running at the training ground last week.
Meanwhile, Bukayo Saka is over the illness which forced him to start the win over Leeds from the bench. It was the first league game he hadn't started this season and the first since December 2021.
Saka has appeared in Arsenal's last 71 league matches, starting 67. Arteta must decide who to leave out of his front three between Leandro Trossard, Gabriel Jesus and Gabriel Martinelli if Saka comes back into the side.
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