Yep, Fast4 definitely rolls a bit differently... #7TENNIS @CoCoVandey @JackSock pic.twitter.com/CNCJbaw6wp
— #7TENNIS (@7tennis) January 1, 2017
Have you ever seen anything like this before? Didn’t think so. A line umpire was invited to serve during the Fast4 Mixed Doubles at the Mastercard Hopman Cup, and then the nigh on physically impossible happened.