Alexandre Lacazette injured his groin during Arsenal's 5-0 victory over Huddersfield Town on Wednesday and "might be out for a while", according to manager Arsene Wenger.
The French striker scored the opener before making way for Olivier Giroud at half-time.
We made our first change at half-time...
— Arsenal FC (@Arsenal) 29 November 2017
@LacazetteAlex
@_OlivierGiroud_ #AFCvHTFC 1-0 (46) pic.twitter.com/zuMcjwGPW9