Nick Kyrgios 7
Nick Kyrgios of Australia in action against Dusan Lajovic of Serbia during day seven at the Miami Open Tennis on March 24, 2019 in Miami Gardens, Florida. Image Credit: AFP

Miami: Having annoyed Rafa Nadal with an underarm serve at Acapulco, Nick Kyrgios doubled down with the tactic to win two points against hapless Serb Dusan Lajovic at the Miami Open and fire up a timeworn debate between modern fans and purists.

The Australian has been sanctioned for a litany of tennis offences, but in dinking the ball over the net with a sneaky under-arm swing, Kyrgios was operating completely within the laws of the game, if not quite the “spirit”, as Nadal and others might have complained.

The 23-year-old has clearly put some time into honing the tactic since his effort against former world No. 1 Nadal floated well beyond the service box. The first attempt at 3-1 in the first set against unseeded Lajovic might have been regarded as textbook execution. With the Serb standing well behind the baseline, Kyrgios leant over the ball, bounced it a few times and without looking up, flicked it just over the net.

It landed with enough slice to bounce twice for an ace and seal the game, leaving a flat-footed Lajovic no chance to reply.

More casually struck, Kyrgios’s second effort lacked something in execution, allowing Lajovic to swoop in and easily make the retrieve.

But the Australian was ready for the Serb’s drop-shot return, and flicked it past him to close out the first set.

British tennis luminary Judy Murray thrilled in the tactic.

“The whole point of tennis competition is to disrupt your opponents game by applying pressure through changing the speed, spin, direction, depth or height of the ball,” the former Fed Cup captain and mother of Andy Murray tweeted.

“And that includes the serve. Kyrgios is a genius. I’m surprised more players don’t do it.”

In the women’s draw in Miami, Simona Halep broke Venus Williams in the first game of their match and never looked back as she coasted to a 6-3, 6-3 victory to book her ticket to the quarter-finals.

— Reuters