The Portland Trail Blazers held their sixth and final predraft workout of the offseason on Monday, evaluating six NBA draft hopefuls at their practice facility in Tualatin.

The headliners of the group were 6-foot-8 wing Justin Jackson from the University of North Carolina, 6-9 big man Jordan Bell from Oregon and 6-10 forward Ivan Rabb from California.

The rest of the group included: Isaiah Hartenstein, a 7-foot forward who played for Zalgiris in Lithuania last season; Wesley Iwundu, a 6-7 forward from Kansas State; and Erik Thomas, a 6-5 forward from New Orleans.

Jackson averaged 18.3 points, 4.7 rebounds and 2.3 assists as a junior at North Carolina. He was the ACC Player of the Year, a consensus first team All-American and helped guide the Tar Heels to a national championship in 2017 before declaring for the NBA draft. He shot 37.0 percent from three-point range on 7.1 attempts per game as a junior, raising his average from 29.2 percent on 3.0 attempts as a sophomore.

Bell averaged 10.9 points, 8.8 rebounds and 2.3 blocks per game as junior at Oregon last season. He was the Pac-12 Defensive Player of the Year and is Oregon's all-time leader in blocked shots (235) and field goal percentage (61.0). He closed out his college career by posting five consecutive NCAA tournament games with at least 12 rebounds, the longest such streak since Hakeem Olajuwon in 1984.

Rabb likely would have been a lottery pick if he had come out after his freshman season, but chose to return to California for his sophomore year. He led the Pac-12 in rebounding and was a first team all conference selection, averaging 14.5 points and 10.5 rebounds in 31 games.

-- Mike Richman

mrichman@oregonian.com

@mikegrich