Complex sentence: In 2007, Levien negotiated a $55 million deal with the Sacramento Kings on behalf of the Kings' leading scorer, Kevin Martin and, in 2005, he negotiated a $33 million deal with the Miami Heat on behalf of Udonis Haslem.
Split into simpler sentences: In 2007, Levien negotiated a $55 million deal with the Sacramento Kings on behalf of the Kings' leading scorer, Kevin Martin. In 2005, he negotiated a $33 million deal with the Miami Heat on behalf of Udonis Haslem.