By Chris Harris

Kieran Gibbs will definitely miss Arsenal's trip to Manchester United after suffering an ankle injury on Wednesday night.

The England left back limped off after 24 minutes of the 3-1 victory over Partizan Belgrade and left Emirates Stadium on crutches.

Gibbs has been incredibly unlucky with his fitness - he missed most of last season with a broken metatarsal and has already suffered injuries to his foot, knee and ankle this term. A scan on Thursday will determine the length of his latest lay-off.

"Kieran has a twisted ankle, an ankle sprain," revealed Arsène Wenger after the Partizan game.

"I don't know how damaged his ankle is - he will have a scan tomorrow [Thursday]. He is unbelievably unlucky.

"No [it is not the same ankle he injured recently], it is the right one tonight. I spoke to him, he is quite down. He is on crutches. I cannot tell you more. We will know tomorrow but he is already out for Monday night."

Copyright 2014 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 9 Dec 2010