International soccer star David Beckham’s professional career began with Manchester United in 1992, part of a rookie talent pool that has been unrivaled more than 20 years later. In the upcoming documentary, Class of ’92, Beckham and former United teammates Nicky Butt, Ryan Giggs, Gary Neville, Phil Neville, and Paul Scholes recount their most intimate memories from their time with the club.

Metro has unveiled details the former England captain shared about the hazing he experienced at United.

Beckham’s story from Metro:

‘One of mine was surprising! The Clayton Blackmore!’ Recalling his teen horror, he said: ‘Everyone had an initiation that you had to go through on the youth team, that was one of the most uncomfortable ones!’ ‘The fact that I had to look at Clayton Blackmore’s calendar and do certain things, while looking at Clayton Blackmore…’ ‘I mean it was embarrassing to talk about!’ Forced to recall the full scale of the horror on camera for the documentary, the 38-year-old said: ‘I was embarrassed when I was saying it on camera let alone talking about it more. But it’s something that we all had to go through. It was definitely something I wouldn’t like to go through again!’

Beckham’s story comes in the wake of Miami Dolphins lineman Jonathan Martin’s allegations that he experienced locker room hazing throughout his time with the team. Martin’s claims are currently being investigated by the NFL.

Beckham began his career with Manchester United in 1991 as a member of the youth squad. When he turned professional, United loaned him to Preston North End from 1994-95. When Beckham returned to Manchester, his career skyrocketed. Beckham and United won six Premier League titles, two FA Cups, and a UEFA Champions League trophy.

View photos from Beckham’s Manchester United career below …