Drake is a ''global ambassador'' for Canada's NBA club. He was performing at a concert that Durant was attending last week in Toronto when he shouted to the crowd to show the league's MVP what it would be like if he came to play for the Raptors, causing a loud ovation.
An NBA spokesman confirmed the fine, which ESPN.com reported Monday was for $25,000.
Durant can become a free agent after the 2015-16 season. He has spent his entire career with the Oklahoma City Thunder franchise.