O'Flynn has been missing since the 4-2 home loss to Brentford on October 30 with a groin injury but has made a full recovery. Defender Billy Jones is also back after sitting out the 3-1 win over Notts County last Saturday with a virus.
David Noble is a major doubt as he is struggling with a bug which has kept him out of the last two matches.
Striker Daniel Nardiello will be pushing for a start. He was an unused substitute against County, but having fully recovered from a back problem and got over his hamstring troubles that have plagued him all season, he could made the first XI.
Skipper Matt Taylor made his first appearance since the first week of the season last weekend after overcoming a back injury and should retain his defensive position.
Source: PA
Source: PA