Mikel Arteta has admitted Arsenal's injury crisis could worsen after Kieran Tierney and Gabriel Martinelli "limped off" against Chelsea.
The Gunners were already without nine senior players for the 2-0 defeat at the Emirates.
Both Tierney and Gabriel Martinelli were forced off injured in the second half.
"Yeah they had to limp off," said Arteta after the game.
"KT [Tierney] had an issue with his quad and Gabi [Martinelli] was cramping.
"With Bukayo they have not played 90 minutes for a long time, but we have to ask them to do it.
"It's really challenging at the moment. We're missing nine players and the majority of them are big senior players."
