Fallon, talking ahead of Saturday's game, said: "The injury stiffened up a little bit near the end of the match but that was always going to happen. I'm looking forward to next Saturday, I can't wait."
Claudio Bravo looks set to join Manchester City in a reported £17million deal from Barcelona.
The toxic story of Arsenal and Arsene is set to roll on for at least another season.
The Premier League continued this weekend, with the first Friday night football of the new campaign.