Tottenham Hotspur goalkeeper Antonin Kinsky suffered a disastrous Champions League debut against Atlético Madrid, being substituted after just 17 minutes. The Czech Republic U21 international conceded three goals and committed two major errors, including a slip that gifted Marcos Llorente the opening goal. Coach Igor Tudor's decision to replace Kinsky tied the record for earliest goalkeeper substitution in Champions League knockout stages.

Kinsky's nightmare began when he slipped, allowing Llorente to score on six minutes. A minute after Antoine Griezmann made it 2-0, Kinsky mis-kicked a clearance that led to Julián Álvarez's goal. Tottenham's 3-0 deficit after 15 minutes was the earliest a team had been so far behind in Champions League knockout-stage history. Tudor replaced Kinsky with Guglielmo Vicario, who had been dropped after conceding 13 goals in five games.

Former England and Spurs keeper Joe Hart, commentating for TNT Sports, said he was "heartbroken" for Kinsky, describing his 14-minute performance as "horrible." Fellow former England keeper Paul Robinson called it unprecedented, saying he'd never seen such a substitution on a football pitch. The incident raises questions about Tudor's decision to start Kinsky over Vicario and could have lasting effects on the young goalkeeper's confidence.