Jeremy Affeldt is a three-time World Series champion, former major league baseball pitcher, humanitarian, public speaker, and author. His professional baseball career spanned 14-years, playing with the Kansas City Royals, Colorado Rockies, Cincinnati Reds and the last seven years with the San Francisco Giants. He played on all three Giants World Champion teams - 2010, 2012, and 2014.

Since his retirement, Affeldt is a television analyst covering the San Francisco Giants on NBC Sports Bay Area and heard weekly on KNBR Radio. He is also a special ambassador with the San Francisco Giants and the author of To Stir a Movement: Life, Justice, and Major League Baseball. Affeldt is the co-founder of Generation Alive, a non-profit organization that works to teach and inspire a generation of young people to act by serving others. He also speaks regularly in churches and other organizations on faith and leadership.

He and his family live on a ranch in Texas.