Lebron vs Kyrie

The Boston Celtics have acquired All-Star point guard Kyrie Irving from the Cleveland Cavaliers for point guard Isaiah Thomas, forward Jae Crowder, center Ante Zizic and Brooklyn's 2018 unprotected first-round pick, the teams announced Tuesday night.

Irving waived a $5.8 million trade kicker -- 15 percent of the total money remaining on his Cleveland deal -- to join Boston, sources said.

The question after each of the Boston Celtics' summer transactions -- and there have been a lot of them -- has been the same: Is Boston better than it was last season?