San Francisco Giants' Casey McGehee, right, is congratulated by third-base coach Roberto Kelly after McGehee hit a grand slam off Miami Marlins' Jarred Cosart in the second inning Friday, May 8, 2015, in San Francisco.
San Francisco Giants' Casey McGehee, right, is congratulated by third-base coach Roberto Kelly after McGehee hit a grand slam off Miami Marlins' Jarred Cosart in the second inning Friday, May 8, 2015, in San Francisco. Ben Margot AP
San Francisco Giants' Casey McGehee, right, is congratulated by third-base coach Roberto Kelly after McGehee hit a grand slam off Miami Marlins' Jarred Cosart in the second inning Friday, May 8, 2015, in San Francisco. Ben Margot AP