Manager John Farrell said the pain that Frasor is experiencing is in the inside of his elbow, but down from the joint itself, which is an encouraging sign. Frasor has dealt with his share of elbow troubles and has undergone two Tommy John surgeries in his career.
The right-hander, who was placed on the 15-day disabled list on Saturday, is in a no-throw program for the next two weeks -- meaning he will likely not come off the DL when eligible to return on Aug. 1.
Frasor felt pain in his arm for much of the season, but it got to a stage where he felt he needed to notify the team.
"Through his experience, I think he was very clear that it got to the point where the daily adrenaline rush, getting ready for a game, wasn't allowing him to get past the discomfort of getting warm," Farrell said. "So he made the appropriate decision to say what was there."
Frasor, who is 1-1 with a 4.00 ERA and 45 strikeouts in 36 innings this season, leads the Blue Jays with 42 appearances and 12 holds entering play on Tuesday.
Farrell mentioned throughout the season that he didn't want to overuse Frasor, or any of his late-inning relievers, but it appears his high-usage rate is what may have led to the discomfort the reliever is feeling.
"We certainly don't want anyone to think they have to be a hero, and yet at the same time, because of his experience, I think he is more readily able to distinguish between some soreness that guys pitch or play with versus pain, and his situation -- unlike others that have sustained injuries -- it wasn't in one pitch," Farrell said. "This is more of a cumulative workload that caught up with him."
Besides two months spent with the White Sox in 2011, Frasor has played his entire Major League career with the Blue Jays and is the club's all-time leader in appearances.