Boston Redsox (2-0) 2 Pittsburgh Pirates (0-2) 0 BOSTON -- Sandy Leon prolonged the game with a baserunning mistake in the third inning. When Boston's catcher came up in the 12th, he ended it. Leon hit a three-run homer -- the first walk-off of his career -- and Chris Sale pitched seven innings of three-hit ball in his Red Sox debut to lead Boston to a victory over the … [Read more...] about MLB Roundup: Leon’s walk-off helps Red Sox past Pirates; Cobb starts off strong, and Twins take down Royals