This bit of news doesn't really affect the Thunder, since he wasn't expected to be ready to start the season anyway with Triple-A Scranton. But according to one report, reliever J.B. Cox underwent surgery this week to repair a ligament in his right elbow. Note that it was repaired, not replaced, as in Tommy John surgery. He could return this season, but likely not until at least the latter part of the summer.
As I wrote in my notebook in Tuesday's paper, Cox first experienced elbow problems when he returned from the Olympic Qualifying Tournament in Cuba last September. The Thunder had planned to reactivate him for Game 3 of the Northern Division Championship Series at Portland, but he complained of a stiff elbow and didn't pitch at all.