Leonard's dunk came a minute into the third quarter of Game 4 at Scotiabank Arena in Toronto. Veteran center Marc Gasol tossed a pass to Leonard as he pushed off Bucks small forward Khris Middleton and cut to the basket.
Leonard corralled the bounce pass and immediately jumped for the one-handed jam. Antetokounmpo extended both of his arms and initiated contact with the Raptors forward but failed to deny the dunk.
The Raptors led the Bucks 94-81 at the end of the third quarter. Leonard had 16 points (5-of-12 shooting), seven rebounds, three steals, two blocks and an assist in 30 minutes.
The Bucks hold a 2-1 series lead in the NBA Eastern Conference finals.