The Dallas Mavericks signed first-round draft pick Dominique Jones on Tuesday to a rookie deal.

The 6-foot-4 shooting guard from South Florida was originally the 25th overall pick in the 2010 NBA draft by the Memphis Grizzlies. Mavs owner Mark Cuban paid $3 million to purchase the pick from the Grizzlies on draft night.

Jones is playing on the Mavs' Summer League team in Las Vegas. Through three games, he's averaging 12.7 points on 32.3 percent shooting, but he's doing a good job of drawing fouls and getting to the free throw line, the quality that attracted him to the Mavs.

The Lake Wales , Fla. , native finished his three-year career at South Florida ranked fifth in career scoring (1,797 points), first in free throws attempted (615) and fifth in both field goals made (592) and attempted (1,339). He was named First Team All-Big East as a junior when he averaged 21.4 points, 6.1 rebounds, 3.6 assists and 1.7 steals per game.

Jones led the Bulls in scoring in each of his three years. He was an honorable mention All-American and a finalist for both the Wooden Award and Naismith Award as a junior and was the only player in the nation to average at least 21 points, six rebounds and three assists per contest. He ranked second in the Big East (15th in the nation) in scoring in his final season with South Florida.

*The Mavs also officially signed free-agent center Ian Mahinmi to a veteran's minimum contract.