Backup catcher Hector Sanchez played a starring role in a wild win.San Francisco Giants' Hector Sanchez, right, is congratulated as he crosses home plate by teammates, including Hunter Pence, after Sanchez hit a grand slam against the Colorado Rockies in the 11th inning of the Giants' 12-10 victory in a baseball game in Denver on Wednesday, April 23, 2014.San Francisco Giants' Hector Sanchez gestures as he circles the bases after hitting a grand slam against the Colorado Rockies in the 11th inning of the Giants' 12-10 victory in a baseball game in Denver on Wednesday, April 23, 2014.San Francisco Giants' Hector Sanchez gestures as he circles the bases after hitting a grand slam against the Colorado Rockies in the 11th inning of the Giants' 12-10 victory in a baseball game in Denver on Wednesday, April 23, 2014.Colorado Rockies third base coach Stu Cole, left, congratulates Troy Tulowitzki as he circles the bases after hitting a two-run home run against the San Francisco Giants in the first inning of a baseball game in Denver on Wednesday, April 23, 2014.