Portland, OR -- (Sports Network) - The Portland Trail Blazers signed a trio of players Wednesday including forward Luke Jackson and two rookies, center Steven Hill and guard Jamaal Tatum.

Per team policy, terms of the contracts were not disclosed.

Jackson, a four-year NBA veteran, posted career-highs in points (5.6) and rebounds (2.4) in 16.3 minutes for Miami last season. The 26-year-old was the 10th overall pick in the 2004 NBA Draft by Cleveland. After two seasons with the Cavs, the former University of Oregon standout split time with the Clippers and Raptors before signing with the Heat in December of 2007.

The seven-foot, 245-pound Hill averaged 3.4 points, 1.8 rebounds and 2.6 blocks in five games with Portland's NBA Summer League squad this past July. The 22-year-old University of Arkansas product averaged 4.2 points, 2.9 rebounds and 2.11 blocks as a senior last season after garnering SEC Defensive Player of the Year honors the season prior.

The six-foot-two, 175-pound Tatum was the fourth overall selection in the 2007 NBA Developmental League Draft before missing the season with an injury. He signed with the Atlanta Hawks that season and participated in training camp. The 23-year-old spent four years at Southern Illinois where he averaged 12.8 points, 2.5 rebounds and 2.4 assists while earning a Missouri Valley Conference Player of the Year award as a senior.