Moise Kean, on loan from Everton, was sent off 40 seconds after coming off the bench as Juventus lost to Roma on Sunday.
Kean came on in the final minute of normal time before being sent off for kicking out at Gianluca Mancini.
The Roma defender had earlier scored the game-winning goal with a powerful low strike.
With the win, Roma reclaimed fourth place in Serie A.
Meanwhile, Juventus drops one place to eighth after their seven-match unbeaten run in all competitions came to an end.