Arsenal manager Mikel Arteta has admitted to having concerns about the fitness of Pablo Mari and Granit Xhaka.
Both went off early in their 3-0 away loss to Manchester City in the Premier League on Wednesday.
Xhaka had what looked like an ankle problem, while Mari had a hamstring issue.
Speaking to reporters during a press conference after the game, Arteta said the following about the two:
"They are getting assessed at the moment then we will know something more tomorrow morning.
"Pablo's one didn't look very good to be fair."