Joe McMahon had surgery in Munich last month

McMahon is back in training with the squad, and has a couple of challenge games under his belt as he strives for a return to full fitness.

"I might be ready to play against Limerick," he said.

"I have played a challenge game with the club and a practice game with Tyrone and it has gone okay."

McMahon underwent surgery on a chronic groin injury in Germany last month.

He had been suffering with a groin problem for a number of months and when his rehabilitation regime failed to rectify the problem, Tyrone physio Louis O'Connor sought out the revolutionary surgery in Munich.

Doctors at the hospital guarantee that a player will be back in training within 7-10 days of undergoing the procedure and McMahon returned to training within that timeframe.

Another Tyrone player, Philip Jordan, has also undergone surgery at the same Munich hospital on a groin injury, and expects to be back in action next month.

Tyrone have already been boosted by the return from long-term injury of Brian Dooher and Conor Gormley, with Brian McGuigan also set to come back following a broken leg before the end of the Division 1A campaign.

But those positive developments have been offset by a number of fresh injuries.

Midfielder Sean Cavanagh is likely to be out for up to eight weeks with a foot problem and full-back Cormac McGinley sustained a calf strain in last Saturday's home defeat by Donegal.