"It's been a long time coming, but it's a blessing at the same time," Griffin said. "I'm just happy to be part of a team that wants me."
The 6-foot-8, 194-pound Griffin averaged 9.8 points in 19.3 minutes during four games with the Mavs’ team in the Las Vegas Summer League. He had several highlight-worthy slam dunks during the summer league.
Griffin has played professionally in Puerto Rico, Venezuela and Italy in addition to spending the 2013 preseason with the Miami Heat. If he does not make the Dallas roster, Griffin’s D-League rights will be owned by the Mavs affiliate Texas Legends.
"It's definitely not over," Griffin said of his dream of playing in the NBA. "I've got to prove myself to the team and the organization."
The Mavs still have their $2.7 million cap-room exception and a minimum-salary slot available to fill out their roster.
Bryan Gutierrez contributed to this report.