Dustin Pedroia’s reputation precedes him. Opponents young and old know better than to expect much in the way of even remotely friendly in-game interaction with the uber-competitive Red Sox second baseman. But this kid named Devon Travis, who is listed at 5-foot-9, got to second base the other day at Fenway Park, and there was the 5-foot-9 Pedroia, one of Travis’ heroes in a game that’s not always kind to little guys like them.