Alexander-Arnold hits out at 'disgusting' alleged Vinicius racism
The game was stopped for more than 10 minutes due to a racism protocol after Vinicius accused Benfica midfielder Gianluca Prestianni of racially abusing him.
"It's disgusting. What's happened tonight is a disgrace for football. It's ruined the night for the team," said former Liverpool full-back Alexander-Arnold.
Real forward Kylian Mbappe called on Prestianni to be banned.
"We cannot accept there's a player playing in Europe's best competition and behaving like this," the France captain told reporters.