The Frenchman, who has been out of action since being substituted during his side's 2-1 defeat to Chelsea on September 29, provided an assist for Andre Santos to equalise as the game finished 1-1.
And, after getting through over an hour unscathed, the midfielder was withdrawn to be replaced by Conor Henderson.
|WEDNESDAY TRANSFER ROUND-UP
|14/1||Arsenal are 14/1 with William Hill to beat Man City 2-0 this weekend at the Emirates
Diaby has made just six first-team appearances so far this season due to his struggles with injury.
Back in November, Gunners boss Arsene Wenger admitted the 26-year-old's absences were a "concern", but emphasised the midfielder's importance to his plans.