left the world of professional football behind in 2017, ending his 15-year career following a brief and unremarkable spell with Cardiff City. The ex-England international now lives a completely different lifestyle after losing his passion for the beautiful game. There are countless examples of footballers falling out of love with the sport that gave them their names.

David Bentley, a midfielder from the same era as Richardson, famously . Likewise, former Chelsea winger and World Cup winner . The German went into various business ventures and has participated in several mountaineering challenges since turning his back on football.

Toni Kroos and Thiago become the latest world-class footballers to announce a premature end to their incredible careers. Richardson has a similar story but has found a passion completely different to either Bentley, Schurrle or any other player to have called it quits on their football career before the standard retirement age. He now makes a fortune trading expensive watches.

The Englishman was a versatile player who made over 200 appearances in the for clubs including Aston Villa and West Brom. The majority of his games came for Sunderland, whom he joined from in 2007. Having shortly after legendary figures such as and Rio Ferdinand, Richardson made the move to Old Trafford in 2001, and he spent one year in the academy before making the step up to the senior team.

Having made his debut for the Red Devils in the 2002/03 season, the ex-Hammers' prosp.