The Cleveland Cavaliers have made the first big move of the new NBA year, agreeing to terms with Kyrie Irving on a new five-year contract extension.

Cavaliers owner Dan Gilbert tweeted the agreement early Tuesday morning, just a couple of hours after the market opened. Gilbert did not announce the terms of the deal, but several outlets reported that it was a maximum deal worth about $90 million.

Irving was the No. 1 overall pick in 2011. He averaged 20.8 points and 6.1 assists in 71 games for the Cavs last season. He is a two-time All-Star and was named the game's MVP last season.

Irving tweets that he's ''super excited'' and ''blessed'' to be part of the organization for the long term.