Arsenal boss Unai Emery is hopeful of Laurent Koscielny's injury not being serious.

Koscielny came off early in the second half of their Europa League win over BATE Borisov.

Emery said, "I think it's precaution and we are going to wait for tomorrow. But, I hope he will be okay for Sunday and for the next week. It's muscular, it's not a break. But it was only precaution because he was starting to feel not good."

Asked whether it's his achilles, the manager added: "I think it's not broken. I think it's only a precaution because he didn't feel good and with the possibility that maybe if he carried on in the match, it could break."