Nadal settles Kyrgios score to keep heat on Federer record

Rafael Nadal won a grudge match with Nick Kyrgios to reach the Australian Open quarter-finals and keep the heat on Roger Federer's record for Grand Slam titles on Monday.

The world number one, labelled "super salty" by Kyrgios after he criticised the Australian's behaviour last year, fought off a furious challenge to go through 6-3, 3-6, 7-6 (8/6), 7-6 (7/4).

As the tennis world mourned the death of Kobe Bryant, Kyrgios arrived at Rod Laver Arena wearing an LA Lakers shirt, and 15-year-old Coco Gauff had tributes to the basketball great scrawled on her trainers during the doubles.

There was also controversy as Australia's Margaret Court, often criticised for her deeply conservative views, was honoured for her 1970 calendar-year Grand Slam.

Nadal and Kyrgios had been feuding after some bad-tempered matches but the Spaniard said he was impressed by what he'd seen from the often-temperamental Australian at this tournament.

Kyrgios fought back to challenge Nadal in a high-octane clash ...