San Francisco Giants starting pitcher Madison Bumgarner at the team's spring training baseball facility in Scottsdale, Ariz. Thursday, Feb. 24, 2011. (AP Photo/Marcio Jose Sanchez Stock Photo - Alamy

San Francisco Giants Jose Casilla (72) at media photo day during spring training on February 23, 2014 in Phoenix, AZ(AP Photo/Chris Bernacchi Stock Photo - Alamy

Madison Bumgarner - Wikipedia

2012 MLB Predictions: San Francisco Giants Season Preview, News, Scores, Highlights, Stats, and Rumors

San Francisco Giants Jose Casilla (72) at media photo day during spring training on February 23, 2014 in Phoenix, AZ(AP Photo/Chris Bernacchi Stock Photo - Alamy

San Francisco Giants Jose Casilla (72) at media photo day during spring training on February 23, 2014 in Phoenix, AZ(AP Photo/Chris Bernacchi Stock Photo - Alamy

San Francisco Giants Jose Casilla (72) at media photo day during spring training on February 23, 2014 in Phoenix, AZ(AP Photo/Chris Bernacchi Stock Photo - Alamy

Report: Ex-Giant Madison Bumgarner competes in pro rodeos under alias

Report: Ex-Giant Madison Bumgarner competes in pro rodeos under alias

San Francisco Giants Jose Casilla (72) at media photo day during spring training on February 23, 2014 in Phoenix, AZ(AP Photo/Chris Bernacchi Stock Photo - Alamy

San Francisco Giants starting pitcher Madison Bumgarner throws to the San Diego Padres during the second inning of a spring training baseball game Sunday, March 18, 2012 in Scottsdale, Ariz. (AP Photo/Marcio

San Francisco Giants Jose Casilla (72) at media photo day during spring training on February 23, 2014 in Phoenix, AZ(AP Photo/Chris Bernacchi Stock Photo - Alamy

Report: Ex-Giant Madison Bumgarner competes in pro rodeos under alias

San Francisco Giants starting pitcher Madison Bumgarner at the team's spring training baseball facility in Scottsdale, Ariz. Thursday, Feb. 24, 2011. (AP Photo/Marcio Jose Sanchez Stock Photo - Alamy