Alexandre Jankewitz will not sleep well tonight.
The 19-year-old made his nightmare debut in the Premier League.
After 77 seconds against Manchester United, he was shown the red card.
Jankewitz faced a careless tackle on Scott McTominay.
Referee Mike Dean never hesitated, he picked up the red card immediately.
Manchester United leads the match 2-0.
Aaron Wan-Bissaka gave the home team the lead in the 18th minute, and just over five minutes later Marcus Rashford extended.
The match is in progress.