Arsenal coach, Arsene Wenger fears Henrikh Mkhitaryan could be out for a number of weeks with a medial knee ligament injury.
Mkhitaryan was forced off in the 4-1 win over CKSA Moscow in the first leg of their Europa League quarter-final on Thursday.
The midfielder will have a scan on Friday to assess the extent of the damage, but Wenger confirmed he will miss Arsenal’s game against Southampton on Sunday.
Asked if Mkhitaryan could be out for a number of weeks, Wenger told Sky Sports News: “I fear yes, I hope I’m wrong.”
Goalkeeper David Ospina will be out for up to three weeks, Wenger confirmed, while Ainsley Maitland-Niles is also unavailable for Sunday’s game.
Lacazette, 26, scored a brace in the victory, taking his tally to three in five days since his comeback from a knee injury.
The £50m summer signing managed just three in his first four months with the club, but Wenger is confident there is room for both Lacazette and Aubameyang in his side.
“Aubameyang I knew could play on the left,” said Wenger, who would not confirm if the pair will start on Sunday.
“He played there a long time. They can play together through the middle, with Lacazette as centre-forward and Auba on the left, and with Auba up front and Lacazette behind. That’s an opportunity as well.”
Sky Sports