Theo Walcott and Cesc Fabregas were both substituted during the 1-0 win over Stoke City after suffering injuries.
After the game, Arsène Wenger gave the following update during his post-match press conference.
"Walcott has an ankle sprain and he's out, for how long I can't tell you, but for Sunday he is definitely out," said the manager.
"Fabregas has a hamstring problem but we will assess that tomorrow, tonight it is impossible to say how serious it is. We will know more about it tomorrow."Copyright 2015 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source