Jon Lester

Jonathan "Jon" Tyler Lester (born January 7, 1984) is a pitcher for the Chicago Cubs. He previously played for the Boston Red Sox and the Oakland Athletics.
He was diagnosed with Non-Hodgkin lymphoma in 2006. He came back and made his first 2007 start. He started and also won the clinching game of the 2007 World Series against the Colorado Rockies. He threw a no-hitter on May 19, 2008.