James announced he would return to Cleveland earlier this month, after spending the past four seasons with the Heat, leading them to two championships.
The NBA schedule is not completed and will be released next month. According to the report, the game likely would be played at either 2:30 p.m. or 5 p.m.
The NBA scheduled five Christmas games in 2013-14. The Heat have played in 10 Christmas Day games, going 8-2 in those contests, winning five straight. Miami beat the Los Angeles Lakers 101-95 on the holiday last season.
The Cavaliers last appeared on the Christmas Day schedule in 2009. James left for Miami the following summer.
- Scooby Axson