Alexandre Lacazette was forced off with an ankle injury as Arsenal were beaten 2-1 by Lyon in the Emirates Cup on Sunday.
2019 Emirates Cup
1-2
Match Report
Arsenal, who had been unbeaten in normal time throughout pre-season, went ahead through Pierre-Emerick Aubameyang in the first half, but two second-half strike from Moussa Dembele gave the French side victory.
But the concern lies with Lacazette, Arsenal's player of the season last term, having being forced off after just 15 minutes.
Aubamyeang broke the deadlock 10 minutes before the break as Mkhitaryan fired a cross at the Gabon international who turned the ball into the net.
The Gunners were dominating the second half but Moussa Dembele stunned the hosts as he headed home in the 66th minute.
Gabriel Martinelli thought he had given the north London side the lead but it was disallowed for offside.
Lyon then raced down the other end and Dembele added a second to see off the Gunners.
Match Events
21' CLOSE! Mkhitaryan's shot too straight
35' GOAL! Arsenal 1-0 Lyon (Aubameyang)
66' GOAL! Arsenal 1-1 Lyon (Dembele)
74' Foul! Martinelli goal disallowed
75' GOAL! Arsenal 1-2 Lyon (Dembele)
Line-ups
Arsenal XI: Nacho Monreal, Sokratis, Aubameyang, Mkhitaryan, Lacazette, B. Leno, G. Xhaka, Chambers, Maitland-Niles, M. Guendouzi, Willock
Subs: Mustafi, Emiliano Martínez, C. Jenkinson, Ceballos, Zech Medley, Nelson, Nketiah, Gabriel Martinelli, R. Burton, T. John-Jules
Lyon XI: Mbiwa, Traoré, Anthony Lopes, Marçal, Depay, T.Mendes, Dubois, Jason Denayer, Diop, Gouiri, Jean Lucas
Subs: C. Tătărușanu, Rafael, K.Tete, J. Andersen, M. Dembélé, Tousart, Aouar, Y. Kitala, A. Racioppi, C. Augarreau, B. Fofana, O. Ndiaye