First base umpire Eric Cooper, left, calls Seattle Mariners' Michael Saunders (55) safe at first base with a two-run single just ahead of Houston Astros relief pitcher Tony Sipp's (29) force attempt, Thursday, May 22, 2014, in the seventh inning of a baseball game in Seattle. Astros manager Bo Porter challenged the call, but it was confirmed on review. (AP Photo/Ted S. Warren)