DALLAS (AP) -- Free agent guard Devin Harris is headed back to the Dallas Mavericks, nine years after starting his career with them as a high draft pick.

Dallas star Dirk Nowitzki tweeted Tuesday that Harris was rejoining the Mavericks, who ended up with him at No. 5 overall in the 2004 draft in a deal that sent Antawn Jamison to Washington. Harris' contract is reportedly for three years and $9 million.

The 30-year-old Harris averaged 9.9 points and 3.4 assists in Atlanta last season.

Harris spent his first 3 1/2 seasons in Dallas and played in the 2006 NBA Finals before going to New Jersey in the trade for Jason Kidd in 2008. The Nets sent him to Utah when they acquired Deron Williams in 2011.