Complex sentence: David Brian Cone (born January 2,1963) is a former Major League Baseball pitcher who played from 1986 to 2003, pitching a perfect game in 1999 and setting the MLB record for most years between 20-win seasons.
Split into simpler sentences: David Brian Cone (born January 2,1963) is a former Major League Baseball pitcher. He also set the MLB record for most years between 20-win seasons.