He's currently ranked as the second best tennis player in the world.
But on Sunday, Roger Federer looked like a true number one when he swapped his tennis whites for a dinner jacket.
Attending the Hopman Cup New Years Eve Players Ball at Perth's Crown Towers, the 36-year-old looked dashing in a black tuxedo.
Looking mighty fine! And on Sunday, Roger Federer looked nearly unrecognisable as he swapped his activewear for a suit and bow-tie
Rodger wore a classic white shirt and black bowtie with his dinner attire.
Cutting a dapper figure, the athlete was clean shaven and had his hair slickly styled.
Posing alongside another other Swiss national player, Belinda Bencic, the pair complemented each other in matching black.
Match point: Posing alongside another other Swiss national player, Belinda Bencic, the pair complemented each other in matching black
Stylish: The player ranked 74 in the world accessorised with a black stone necklace and styled her brunette locks into loose waves
Belinda donned a strapless frock featuring