EFEMelbourne, Australia

Top seed Rafael Nadal of Spain was made to work hard by home favorite Nick Kyrgios on Tuesday for a 6-3 3-6 7-6(6) 7-6(4) win to advance into the quarterfinals of the Australian Open.

The high-profile encounter lived up to its billing when Kyrgios snatched the second set and stretched Nadal to tiebreakers in the third and fourth.