Arsenal winger Bukayo Saka will miss his side's Carabao Cup tie at Brentford on Wednesday and could also be out of Saturday's league game at Bournemouth.
The 22-year-old England winger suffered a foot injury in the 2-2 draw with Tottenham on Sunday and was replaced by Emile Smith Rowe just before the final whistle.
"He was limping quite badly after the match," said Arsenal boss Mikel Arteta.
"We had to get him off the field, which is never a good sign."
Asked if Saka could miss the Premier League match at Bournemouth, Arteta added: "It's a possibility, yes.