Australian Open: Matteo Berrettini overcomes Spanish prospect Carlos Alcaraz

Berrettini (middle) needed treatment on his ankle early in the final set

Seventh seed Matteo Berrettini overcame Spanish prospect Carlos Alcaraz in an enthralling five-set battle to reach the Australian Open fourth round.

Berrettini held his nerve to win the deciding tie-break 6-2 7-6 (7-3) 4-6 2-6 7-6 (10-5) at the Rod Laver Arena.

"He is unbelievable," said 25-year-old Berrettini of his teenage opponent.

"He is impressive and will only improve playing matches like this, he has shown everyone his potential. Luckily today I won."

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The Wimbledon finalist looked in control for the first set and most of the second before Alcaraz grew in confidence, breaking back and taking it to a tie-break that he lost.

But the signs were there and the young Spaniard clinched the third set before storming through the fourth to set up a decisive finale.

Berrettini turned his ankle early in the set and needed treatment, but the Italian dug in to fend off a break point and then brought up match point at 6-5.

Alcaraz, who beat Berrettini at the Erste Bank Open in Austria last year, saved the point with a fizzing second serve and battled back to hold and force the tie-break.

However, it was the more experienced Berrettini who edged ahead and did not let up in the first-to-10 decider, winning a match that lasted more than four hours.

German third seed Alexander Zverev had a more straightforward passage into the last 16, seeing off Moldovan qualifier Radu Albot 6-3 6-4 6-4.

Zverev will now play Canadian 14th seed Denis Shapovalov, who beat American Reilly Opelka 7-6 (7-4) 4-6 6-3 6-4.

French 17th seed Gael Monfils overcame Chile's 16th seed Cristian Garin 7-6 (7-4) 6-1 6-3 and will play Serb Miomir Kecmanovic, who knocked out Italian 25th seed Lorenzo Sonego 6-4 6-7 (8-10) 6-2 7-5.

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