When Martina Navratilova won the US Open mixed doubles at almost 50 years of age

Andy Murray and Serena Williams are teaming up in the mixed doubles in Wimbledon relaunching this fascinating discipline that is extremely tactical.

We all enjoyed watching Roger Federer and Belinda Bencic winning the Hopman Cup in Perth winning the mixed together for the last couple of years, but Martina Navratilova conquering the US Open with Bob Bryan when she was almost 50 still gives goosebumps.

Enjoy this video.