Things are getting more difficult for Arsenal as they may lose another key player as the 1-0 win against Shakhtar Donetsk UEFA CL has cost them
An own goal from Shakhtar goalkeeper Dmytro Riznyk proved to be the difference as he parried Gabriel Martinelli's effort on goal, giving the Gunners their second Champions League win of the season
Leandro Trossard had a good chance to double Arsenal's advantage with a penalty kick in the second half but he missed the chance
Gunners fans may be more worried about Riccardo Calafiori's fitness than results
The Italian defender had to be taken off in the second half after his knee turned inward when he slipped and fell badly
Calafiori looked fine at the start, but was unable to continue as Myles Lewis-Skelly came on for him in the 72nd minute
Missing Calafiori will be the last thing Arteta needs heading into Sunday's clash with Liverpool at the Emirates
