White Sox prospect Tanner McDougal looking to show improved mechanics after rocky debut

HOUSTON – White Sox right-hander Tanner McDougal’s major league debut on Aug. 13 was the realization of a lifelong dream, both for him and his father Mike, who pitched for six professional seasons but topped out in Triple-A. It also saw him walk three batters and plunk another to force in a run, prompting the ballyhooed prospect’s return to Charlotte for the following two and a half weeks. “It sucked, but I felt like I got over it relatively quick compared to other ways I could have handled the…