However, the Spaniard insists there are no issues with Aubameyang after the pair discussed the matter.
“We talked, everything has been resolved in a really positive way so we move forward,” Arteta said on Wednesday.
In Aubameyang’s absence, Arsenal beat Spurs 2-1 and Lacazette scored the winning goal from the penalty spot.
As a result, the Gabon striker could face a fight to get into the team for the second leg of Arsenal’s Europa League last-16 tie against Olympiacos on Thursday night.
The Gunners head into the game with a 3-1 aggregate lead following the first match in Athens, but asked if it was a given that Aubameyang would return to the team, Arteta said: “No.
“Everybody has to obviously perform at the highest level to earn their place in the team, there is no exception there and we will try to put a really competitive team out tomorrow to try to win again.”