The world No. 277 claimed a remarkable 7-6(7), 3-6, 7-6(1) victory over the Italian, former world No. 5, delivering a memorable performance in front of his home crowd at the ATP Masters 1000 tournament.
Zhou holds his nerve in opening-set thriller
Zhou showed impressive composure against the more highly ranked Musetti, taking the opening set in a tense tie-break.
The Chinese player’s serving proved a major asset throughout the contest, as he recorded 14 aces, compared with Musetti’s five.
Musetti responded in the second set, raising his level to win it 6-3 and force a deciding set, leaving Zhou to find a way through against the Italian’s greater experience on the ATP Tour.
Chinese wildcard dominates deciding tie-break
With the match finely balanced, Zhou produced his best tennis when it mattered most.
Both players battled through the deciding set to another tie-break, where the home favourite took control and raced to a 7-1 win to complete the upset.
The victory was a significant breakthrough for Zhou, who entered the tournament ranked 277th in the PIF ATP Rankings, while Musetti was seeded 24th in Shanghai.
Musetti suffers early Shanghai exit
The defeat represents a disappointing early exit for Musetti, who has previously reached as high as fifth in the world rankings.
For Zhou, however, beating a player of Musetti’s calibre on home soil is a major milestone and a boost to his growing reputation on the international circuit.
His performance also gave Chinese tennis supporters another moment to celebrate at one of the sport’s biggest tournaments in Asia.
Zhou celebrates career-defining victory
Zhou’s win underlined the unpredictability of the Shanghai Masters, where lower-ranked players have the opportunity to test themselves against established names.
By overcoming Musetti in a match decided by two tie-breaks, the Chinese wildcard demonstrated both resilience and composure under pressure.
The victory sends Zhou into the third round, where he will look to build on one of the most significant wins of his career.