Complex sentence: Less than two years after being diagnosed with lymphoma, Lester started and won the final game of the 2007 World Series for the Red Sox, and in May 2008, pitched a no-hitter against the Kansas City Royals.
Split into simpler sentences: Less than two years after being diagnosed with lymphoma, Lester started and won the final game of the 2007 World Series for the Red Sox. In 2008, he pitched a no-hitter against the Kansas City Royals.