Tyrone boss Mickey Harte says Tiernan McCann's fitness will be a real concern for his team ahead of the opening round of their Ulster SFC title defence.
McCann suffered a fractured kneecap during the Red Hands' one-point win over Kildare three weeks ago, ruling him out for the remainder of the Allianz League campaign, and Harte accepts that he may not be fully fit for the showdown with Monaghan come May 20th.
"It is a serious issue for us, it's looking like it will be a race for championship time," the three-time All-Ireland winning manager told BBC Northern Ireland.
He continued: "He is a really big player and a great attacking defender, if you like, and comfortable on the ball. The kind of game that we play we certainly miss someone like Tiernan.
"He won't see any more of the league and we just hope by the time the championship comes around he will have recovered enough, and have trained enough, to be ready for that.
"But that is to be decided at this stage."