Nick Kyrgios catches opponent off guard, serves sneaky underarm ace in Miami Open win

Australian star Nick Kyrgios is through to the Miami Open men’s fourth round, after serving a sneaky underarm ace in his 6-3, 6-1 win over Serbian Dusan Lajovic yesterday.

The 23-year-old was too good for Lajovic as he hit 12 aces in the third round match.

Kyrgios pulled out all the stops, serving two underarm serves, a between the legs shot and a no-look volley during his dominant win.

Midway through his match Kyrgios exchanged some heated words with a spectator, before the man was escorted out of the arena for heckling him.

Kyrgios is set to take on Croation Borna Ćorić tomorrow in his fourth round match in Miami.