Rafael Nadal blasted French Open umpire Carlos Ramos on Sunday for treating him like a “machine” and suggested he was being unfairly targeted in an effort to speed up play.

Nadal reached a record-equalling 11th Roland Garros quarter-final with a 6-1, 6-2, 6-2 win over Spanish compatriot Roberto Bautista Agut.

But his joy at matching Roger Federer’s mark for last-eight appearances in Paris was overshadowed by an astonishing broadside at Ramos.

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The umpire had warned the 31-year-old in the first set for slow play and again in the third before deciding to dock Nadal a first serve.

“If you want to play well, you have to let players breathe a little. We’re not machines that cannot think. That’s my viewpoint,” said Nadal, who repeatedly falls foul of the rule which stipulates a maximum 25 seconds between points.