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The LA Galaxy man looked dapper at the star-studded event.
The football ace attended Ali's birthday celebrations at the MGM Grand in Las Vegas, paying tribute to one of his sporting heroes.
Today, Beckham posted a picture of him onstage at the event as he introduced another hero.
'I was honoured and lucky enough to be invited to Muhammad Ali's 70th Birthday celebrations last weekend in Las Vegas,' read the caption. 'Here's me welcoming Stevie Wonder to the stage…'