A Premier League debut is a daunting prospect for even the most seasoned professional footballers.
The intensity of the league, the expectation of the fans, the scrutiny on social media: all of it can weigh heavy on new players' shoulders.
And there have been plenty of disastrous debuts for those unprepared or simply overawed by the occasion.
In light of Joao Felix's nightmare debut on Thursday, here are 11 of the worst debuts in the division's history.
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