Dewayne Dedmon's time with the Heat is over after Miami traded the back-up centre to the San Antonio Spurs on Tuesday.

The Spurs also receive a second-round pick in the 2028 draft, while the Heat got cash considerations, which gives the franchise financial flexibility.

Dedmon is averaging 5.7 points and 3.6 rebounds in 30 games this season, but has only appeared in one contest since being ejected for unsportsmanlike conduct in a win over the Oklahoma City Thunder on January 10.

In that game, the 33-year-old argued with Heat coaches about playing time, feuded with team-mates and knocked a massage gun onto the court during play. He was suspended for one game by the Heat for his actions.

He joins a San Antonio team that has the second-worst record in the Western Conference at 14-40, and this will be his second stint with the franchise after playing there in 2016-17.

The 10-year veteran with career averages of 6.4 points and 5.8 rebounds has also played for the Golden State Warriors, Philadelphia 76ers, Orlando Magic, Atlanta Hawks and Sacramento Kings.

The Heat, who are atop the Southeast Division with a 29-25 record, move on without Dedmon, as well as Kyle Lowry for the foreseeable future.

Lowry sat out Saturday's loss to the Milwaukee Bucks due to left knee soreness, and the Heat announced he will miss at least three more games.

He will be re-evaluated next week, with Miami having just two more games before the All-Star break.

The 17-year veteran missed three games in January due to left knee discomfort and he has struggled to find his shot since returning, averaging 5.6 points on 25 per cent shooting in his last five games.

On the season, the 36-year-old is averaging 12 points – his lowest scoring average since averaging 11.6 points in 2012-13 for the Toronto Raptors.