Bruce Rondon struggled in his most recent outing. His next outing is being delayed by a couple days. Rondon will work on mechanical issues in a side session Wednesday. Detroit Tigers pitching coach Jeff Jones said Monday morning that Rondon is likely to pitch Friday against the New York Mets. Jones said a comparison of film from this spring to late last season, when Rondon was pitching for Triple-A Toledo, revealed some differences in his mechanics. "There's a couple things a little bit different and we're going to work on that in the bullpen," Jones said. "We'll get it figured out." Rondon is 0-1 with a 7.36 ERA in four Grapefruit League appearances this spring. He allowed two runs on two hits and a walk in one inning pitched Sunday against the Atlanta Braves. He has struck out six and walked five in 3 2/3 innings this spring.