The world no.1 beat Kei Nishikori of Japan 6-2, 6-0 in just 70 minutes, as he continued his quest for a first Olympic tennis gold medal. Novak will next play Alexander Zverev (GER, 4) on Friday.
Novak continued his quest for a third consecutive Wimbledon title with a 6-3, 6-4, 6-4 win over unseeded Marton Fucsovics on Centre Court. He will face Denis Shapovalov (CAN, 10) in Friday's semi-final.
The Serbian star, a defending champion at the Foro Italico, came back from a set and a break deficit to seal a 4-6, 7-5, 7-5 win over the fifth-seeded Greek. Looking to reach the Italian Open final for the 11th time, Novak will take on Lorenzo Sonego (ITA, ATP #33) later today.
Nole continued his bid for a record 36th ATP Masters 1000 title. The world no.1 advanced to his 11th semi-final at the Internazionali BNL d’Italia, following a 6-3, 4-6, 6-3 win against German qualifier Dominik Koepfer. He next faces Casper Ruud (NOR, ATP #34).
The world no.1 has made it through to the last four of the Western & Southern Open for the eighth time, sailing past big-hitting German Jan-Lennard Struff 6-3, 6-1 in just over an hour. He goes on to face Roberto Bautista Agut for a place in the Masters 1000 event final.
The top seed from Serbia enjoyed a crushing 6-2, 6-2 victory over John Isner (USA, 6) to book his place in the China Open last on Friday.