The Boston Celtics officially welcomed Shaquille O’Neal at a press conference today. Shaq said he was honored to join the Celtics, and glad to be with a great team with a commitment to win. He also spoke of the Celtics’ “rich tradition” and added he plans to “give it all he’s got” for the team. O’Neal averaged 12 points and 6.7 rebounds in 53 games last season with the Cleveland Cavaliers. The Celtics signed the 38-year-old center to a two-year contract worth the league veteran minimum of $1.4 million per season. O’Neal is a 15-time All-Star and was the NBA MVP in 2000. He won three championships during his time with the Los Angeles Lakers, and picked up another ring during his stint with the Miami Heat.