Novak Djokovic has won over 50 tennis tournaments in his career. You'd think he'd be getting used to opening a bottle of celebratory champagne afterwards but it appears not.
After beating Roger Federer in the Rome Masters - the final warm up tournament before the second Grand Slam of the year - the French Open, Djokovic had a bit of trouble opening the champagne bottle.
I'm fairly sure my 13 year old cousin knows that's not how you are meant to do it.
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And he used to be so good with champagne too!