Sherrill, who was placed on the 15-day disabled list with what the team is calling a strained flexor tendon bundle, said an MRI was done on the elbow on Saturday and he was waiting on the results.
Sherrill last pitched April 9 in Texas, when he gave up three runs on three hits in 1 1/3 innings.
"Any good breaking ball bounced and hurt, and the rest of the breaking balls were just cement mixers," Sherrill said. "You try and hump up [with a fastball] and you got 85 [mph]. Nothing against anybody that throws 85, but I'm not used to it. When it's 85 and flat, it's kind of easy to hit."
Sherrill said he has a bone spur in the elbow that developed while he was with the Dodgers in 2009-10, and suffered more wear and tear in another part of the elbow while with the Braves last year. He said he was administered the innovative blood-spinning treatment known as a platelet-rich-plasma (PRP) injection last year. He described that procedure as "the worst pain I've ever felt in my life," and one that ended up being ineffective, so he decided not to go that route for this problem.
"The biggest thing is the anti-inflammatories that I've been on and kind of slowly graduated up," said Sherrill. "... They just haven't knocked it out and I don't know why. I'm not a doctor. I don't know how all that stuff works. I'm hoping it's just inflammation, and we can get it calmed down and be back shortly."