Frank Francisco's availability for Opening Day is in question more than ever after the Toronto Blue Jays closer experienced discomfort in the right pectoral area Saturday during a bullpen session.

He will not make a scheduled minor league appearance Sunday. Francisco had an MRI on Friday that according to manager John Farrell was "completely sound, completely clean … no structural issues," but he will be re-evaluated Sunday.

Jon Rauch would be the Blue Jays closer if the team broke camp this morning.

"He (Francisco) felt relieved by the MRI, but when he gets on the angle of the mound and throws, that's where he feels it in the pec area," Farrell said before a 5-5, 10-inning tie with the New York Yankees at George M. Steinbrenner Field. "I know Opening Day is approaching, but you have to to look at a full season. We have to continue to evaluate it day to day hopeful opening day is still a possibility but without anything definitive today, it's still in doubt."

Francisco, who came into camp as the favorite for the closer's job, has just two appearances this spring and has been hampered by shoulder soreness that has moved into the pectoral area, and while he has been telling the Blue Jays he doesn't need much time to get ready for the season, both Farrell and general manager Alex Anthopoulos noted that between rest days and side sessions and back to back outings – all the things a closer needs to do to get ready – the clock is not in Francisco's favor.