Saturday's Ulster semi-final between Donegal and Armagh was just three minutes old when Declan Bonner had to make a change.
Stephen McMenamin, one of his best key man markers, had picked up a hamstring injury. The corner-back is unlikely to be available for this weekend's Ulster final against Cavan.
"It's looking very doubtful for Stephen," Bonner said during a video call on Monday.
"We'll give him a real opportunity but at this current time we haven't got him back onto the pitch yet. But it would be probably less than 50-50."
There is better news for the Donegal manager regarding Paddy McGrath and Hugh McFadden.
"He'll be assessed," Bonner said about McFadden, who left the weekend's game with 20 minutes to play.
"But I think Hughie will be OK. Stephen is probably our main concern.
"Paddy will get back the pitch tomorrow night, so fingers crossed that he comes through the week now."
Paddy McBrearty, one of Donegal's most potent forwards, stepped off the bench against Armagh to play 20 minutes and score a point. Bonner was happy to see 27-year-old getting game time.
"Paddy is an important member of the group," said Bonner.
"It's great to get him back on the pitch. He missed about four weeks, with a quad injury. But he's back. Another two sessions this week will be important to him."
Photo by David Fitzgerald/Sportsfile