Alexander Zverev played his best tennis when it mattered most to down Tommy Paul 7-6(1) 7-6(0) 2-6 6-1 on Tuesday and reach his third Australian Open semifinal in five years, keeping alive his dream of finally landing a Grand Slam title.

The 27-year-old German was unable to find his peak level for much of a match played in the stifling afternoon heat on Rod Laver Arena but dominated his American opponent in tiebreaks to lock up the first two sets.

Paul bagged the third set but second seed Zverev upped his intensity to whip through the fourth and set up a meeting with the winner of the later blockbuster clash between Novak Djokovic and Carlos Alcaraz.