Danny Welbeck was forced off against Chelsea on after the Arsenal striker sustained a groin injury at Stamford Bridge.

Welbeck was seen clutching his groin as he came off in the 73rd minute of the London derby match following a clash with Chelsea defender David Luiz.

After a few moments receiving medical treatment, Welbeck left the pitch as Arsene Wenger replaced him with Olivier Giroud.

Welbeck's issue will certainly be a worry for Wenger, with Mesut Ozil having missed the clash in west London with a knee problem.

In Pictures | Chelsea vs Arsenal | 17/09/2017 43 show all In Pictures | Chelsea vs Arsenal | 17/09/2017 1/43 AP Photo/Frank Augstein 2/43 AFP/Getty Images 3/43 Getty Images 4/43 AFP/Getty Images 5/43 Getty Images 6/43 AFP/Getty Images 7/43 Chelsea FC via Getty Images 8/43 AFP/Getty Images 9/43 AFP/Getty Images 10/43 AFP/Getty Images 11/43 AFP/Getty Images 12/43 Getty Images 13/43 AFP/Getty Images 14/43 AFP/Getty Images 15/43 Getty Images 16/43 AFP/Getty Images 17/43 AFP/Getty Images 18/43 Getty Images 19/43 AFP/Getty Images 20/43 Getty Images 21/43 Rex Features 22/43 AFP/Getty Images 23/43 Getty Images 24/43 AFP/Getty Images 25/43 Chelsea FC via Getty Images 26/43 Getty Images 27/43 Chelsea FC via Getty Images 28/43 Getty Images 29/43 AFP/Getty Images 30/43 AFP/Getty Images 31/43 AFP/Getty Images 32/43 Mike Hewitt/Getty Images 33/43 Getty Images 34/43 Chelsea FC via Getty Images 35/43 Getty Images 36/43 Chelsea FC via Getty Images 37/43 Getty Images 38/43 Chelsea FC via Getty Images 39/43 Getty Images 40/43 Getty Images 41/43 Chelsea FC via Getty Images 42/43 Chelsea FC via Getty Images 43/43 Chelsea FC via Getty Images 1/43 AP Photo/Frank Augstein 2/43 AFP/Getty Images 3/43 Getty Images 4/43 AFP/Getty Images 5/43 Getty Images 6/43 AFP/Getty Images 7/43 Chelsea FC via Getty Images 8/43 AFP/Getty Images 9/43 AFP/Getty Images 10/43 AFP/Getty Images 11/43 AFP/Getty Images 12/43 Getty Images 13/43 AFP/Getty Images 14/43 AFP/Getty Images 15/43 Getty Images 16/43 AFP/Getty Images 17/43 AFP/Getty Images 18/43 Getty Images 19/43 AFP/Getty Images 20/43 Getty Images 21/43 Rex Features 22/43 AFP/Getty Images 23/43 Getty Images 24/43 AFP/Getty Images 25/43 Chelsea FC via Getty Images 26/43 Getty Images 27/43 Chelsea FC via Getty Images 28/43 Getty Images 29/43 AFP/Getty Images 30/43 AFP/Getty Images 31/43 AFP/Getty Images 32/43 Mike Hewitt/Getty Images 33/43 Getty Images 34/43 Chelsea FC via Getty Images 35/43 Getty Images 36/43 Chelsea FC via Getty Images 37/43 Getty Images 38/43 Chelsea FC via Getty Images 39/43 Getty Images 40/43 Getty Images 41/43 Chelsea FC via Getty Images 42/43 Chelsea FC via Getty Images 43/43 Chelsea FC via Getty Images

Welbeck's apparent injury occurred with the Gunners holding the Premier League champions to a goalless draw, with Arsenal then seeing Shkodran Mustafi's effort ruled out for offside moments later.

Speaking after the match, Arsene Wenger told Standard Sport: "He has a groin problem. I don't know how severe it is. It looks like it is a 'good' groin problem. Not an easy one."

Chelsea would finish the match with ten men after Luiz was sent off late on, as Arsenal took a point from the London derby.