Sources told The Athletic, ESPN and Cleveland.com on Monday that the Cavaliers plan to move on from Porter. The reports stated that Porter became angry Friday when the team gave his old locker to teammate Taurean Prince.
Prince joined the team last week after he was traded from the Brooklyn Nets.
Porter has not played this season for what the team has called "personal reasons." He was arrested in November and faced charges of improper handling of a firearm in a motor vehicle, failure to control the vehicle and misdemeanor possession of marijuana, before those charges were dismissed.
He practiced Thursday before he attended his first game of the season Friday in Cleveland.
Porter, 20, averaged 10 points, 3.2 rebounds and 2.2 assists per game in 50 appearances in 2019-20. The 6-foot-4, 203-pound swingman entered the league as the No. 30 pick in the 2019 NBA Draft.
The Cavaliers host the Nets at 7 p.m. EST on Wednesday in Cleveland.