Roger Federer beats Serena Williams in battle of the tennis legends

    Serena Williams (second left) and Roger Federer are flanked by teammates Frances Tiafoe and Belinda Bencic as they line up before the start of their mixed doubles clash at the Hopman Cup.

    Story highlights

    • Historic mixed doubles clash at Hopman Cup
    • Federer's Switzerland beats US in Perth

    (CNN)Roger Federer was on the winning side in his historic mixed doubles match against fellow tennis great Serena Williams at the Hopman Cup Tuesday, but in the end the result hardly mattered.

    Paired with Belinda Bencic, Federer beat Williams and Frances Tiafoe 4-2 4-3 (5-3) to give Switzerland a 2-1 win over the United States in their round robin match.
    More importantly, it was the first and probably last time that fans would get to see the two tennis players, widely regarded as the greatest of all time, battle it out across the net in a competitive match -- and after it was over they even had time to pose for a selfie that is sure to go viral.
    A very special selfie. Serena Williams and Roger Federer strike a pose after their historic clash at the Hopman Cup in Perth.