Arsenal began their pre-season campaign with a 3-0 win over Colorado Rapids.
But the Gunners will face a much sterner test when they go up against Bundesliga champions Bayern Munich at the Dignity Health Sports Park.
Unai Emery has the vast majority of his Arsenal squad available to him but club captain Laurent Koscielny’s future remains in doubt after deciding not to travel with the team to the United States.
Asked for an update on Koscielny, Emery said: “I spoke yesterday about that.
“Now this matter is for the club and him. Before he travelled I spoke with him three times.
“He wanted to speak with the club, his first idea was to leave from the team.
“When I spoke with him I wanted him to come with us and to continue speaking with the club about the best possibility for him. He decided to stay in London.”
The clash with Bayern Munich kicks off the in the early hours of Thursday morning in the UK at 4am.
Arsenal vs Bayern Munich – how to watch
Live television coverage can be found on Premier Sports 1 throughout the UK and Ireland.
A subscription to the service costs £9.99 per month, which Sky and Virgin customers can add to their packages.
Live streaming is available at the same price via the Premier Sports app and through their online player.
Arsenal vs Bayern Munich head-to-heads
Bayern have comfortably come out on top in the head-to-heads of this tie over the years.
In 12 meetings since 2000, Arsenal have won just three times, whereas the Germans have been victorious on seven occasions.
As for recent clashes, the last three results have gone 5-1 in Bayern’s favour.