Complex sentence: In 1962 the reigning world champion Green Bay Packers drafted Green in the 14th round of the 1962 NFL Draft, but during training camp they traded him to the Cleveland Browns where he would make a name for himself as one of the league's top fullbacks.
Split into simpler sentences: In 1962 the reigning world champion Green Bay Packers drafted Green in the 14th round of the 1962 NFL Draft. During that year's training camp, Green was traded to the Cleveland Browns where he would make a name for himself as one of the league's top fullbacks.