Photos: Baseball's Opening Day

Seattle Mariners pitcher Felix Hernandez reacts after shortstop Brendan Ryan throws out Yoenis Cespedes of the Oakland Athletics to end the fourth inning on Monday, April 1, in Oakland, California. The Mariners won 2-0 on Opening Day, the official start of the 2013 Major League Baseball season.

Seattle Mariners pitcher Felix Hernandez reacts after shortstop Brendan Ryan throws out Yoenis Cespedes of the Oakland Athletics to end the fourth inning on Monday, April 1, in Oakland, California. The Mariners won 2-0 on Opening Day, the official start of the 2013 Major League Baseball season.