Wilshere was replaced in the second half having been troubled by an ankle problem, which is not expected to keep him out of the weekend's game at Crystal Palace.
Wenger said: "You could see that he was not completely himself and that is why I decided to take him off.
"At the moment it is his desire to play that gets him through the game. It looks like he was handicapped after the first tackle he got. He looked like he landed awkwardly. He looked to me that he limped a little bit.
"We will see how he responds in the next two or three days, we have to wait for the medical assessment."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball