A week after Alex White was limited to just one inning during an exhibition start, the Astros announced Friday the righthander will undergo Tommy John surgery. White, 24, will miss the 2013 season after beginning the year on the 60-day disabled list. Three doctors consulted an MRI of White’s strained right elbow. All reached the conclusion ulnar collateral ligament reconstruction (Tommy John surgery) is the best long-term option for White, who was an offseason candidate for the_ rotation. “The best course of action was to go ahead and take care of it now because there’s a high likelihood that it would get worse,” general manager Jeff Luhnow said prior to [...]