San Francisco Giants second baseman Juan Uribe can't make the grab on a ground hit by Boston Red Sox' Clay Buchholz in the second inning of an interleague baseball game in San Francisco, Saturday, June 26, 2010.Mike Cameron hit a three-run homer, Darnell McDonald also connected and the Boston Red Sox beat the San Francisco Giants and their top pitching prospect 4-2 on Saturday. Scott Atchison (1-1) tossed 2 1-3 innings for the win against his former team after Boston starter Clay Buchholz was removed early because of a hyperextended left knee that he hurt while running the bases. The Giants called up Madison Bumgarner (0-1) from Triple-A Fresno to make his 2010 debut and second career start.