After shocking the tennis world at the 2025 Australian Open with a marathon triumph over Daniil Medvedev, 19-year-old Learner Tien refuses to slow his rise. The fearless American, who carved his name into the sport’s spotlight with that near-five-hour epic, now stares down the greatest test of them all: 24-time Grand Slam giant Novak Djokovic in the opening round of the US Open . Yet Tien steps into this clash armed with new firepower, as Michael Chang joins his corner, set to debut in the coaching box for what promises to be a thrilling, generational showdown under the New York lights.

Learner Tien’s 2025 journey quietly began in Hong Kong, where a routine practice at the ATP 250 brought him face-to-face with former World No. 2 Michael Chang, a three-time champion at the event.

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