Novak defeated 99th-ranked American Jenson Brooksby 1-6, 6-3, 6-2, 6-2 to reach the last eight in New York and keep alive his hopes for the first calendar-year Grand Slam by a men’s player since 1969.

Novak is through to his 50th Grand Slam quarter-final following a 6-2, 6-4, 6-2 victory over 17th seed Cristian Garin. For a place in The Championships semis, the top seed will play 48th-ranked Marton Fucsovics (HUN, 2-0 H2H) on Wednesday.

Novak continued his quest for a 19th Grand Slam title as he completed a comeback from two-sets-to-love down on Monday for a place in the French Open quarter-finals. The world no.1 progressed after three hours and 27 minutes of play on Court Philippe-Chatrier, when Lorenzo Musetti retired at 6-7 (7), 6-7 (2), 6-1, 6-0, 4-0. In his 49th career major quarterfinal, Novak will take on ninth seed Matteo Berrettini.

Nole beat no.14 seed Milos Raonic 7-6 (4), 4-6, 6-1, 6-4 for a place in his 12th Australian Open quarter-final. Looking to reach the last 4 in Melbourne, the defending champion will take on no.6 seed Alexander Zverev on Tuesday.

Nole produced another solid win when he beat no.15 seed Karen Khachanov (RUS) 6-4, 6-3, 6-3 to advance into his 14th Roland Garros quarter-finals. For a spot in the last four, the top seed will play Pablo Carreno Busta (ESP, 17).

Top seed and three-time former champion has been disqualified from his US Open fourth-round match against Pablo Carreno Busta, after accidentally hitting a ball at a linesperson.

World no.2 and defending champion advanced to the last eight of the Australian Open after beating no.14 seed Diego Schwartzman 6-3, 6-4, 6-4 at Rod Laver Arena. He will now face Milos Raonic on Tuesday.

Novak's US Open title defence came to a halt on Sunday when the Serb retired from his fourth-round match against Stan Wawrinka. The Swiss led, 6-4, 7-5, 2-1, when the top seed stopped due to a left shoulder injury. They were facing off for the first time since the 2016 US Open final.

The defending champion cruised through his fourth round match with a 6-3, 6-2, 6-3 victory over Ugo Humbert in one hour and 42 minutes, reaching the last eight of a major for the 45th time. He goes on to face no.21 seed David Goffin (5-1 H2H) on Wednesday.

The 2016 champion was too strong for Struff as he progressed to the last eight with a 6-3, 6-2, 6-2 win in one hour and 33 minutes. Next up for Novak is Alexander Zverev (GER, 5)