Nick Kyrgios mimicked Roger Federer during his Washington Open 7-5, 6-4 win over Son Kwiatkowski.
Federer invented Secret Attack By Roger-SABR move. It consists of rushing to the service box as the opponent is delivering the ball. It is an attempt to put off the server while also gaining an advantage by returning much quicker than anticipated.
Kyrgios then took to Twitter to ask: “Where is the sabr on break point?”