John Cena presented at the Oscars naked with just an envelope to cover his modesty. The ‘Blockers’ actor showed off his muscular physique as he reluctantly walked on stage at Los Angeles’ Dolby Theatre on Sunday (10.03.24) to hand out the Best Costume Design accolade – which went to ‘Poor Things’ – as part of a sketch with host Jimmy Kimmel, who referenced one of the Academy Awards’ most shocking moments, when a named man ran on stage at the 1974 ceremony. Jimmy asked: Can you imagine if a nude man ran across the stage today? I said, can you imagine if a nude man ran across the stage today? Wo…