Hong Kong tennis star Coleman Wong pulled off the biggest triumph of his career in dramatic fashion, defeating 13th seed Ben Shelton of the United States at the Miami Open.

The 20-year-old wildcard prevailed 7-6, 2-6, 7-6 in a thrilling three setter, despite letting slip a 5-2 lead in the final set.

"I always trust myself to play in these big stages," an emotional Wong said after the match. "This is for you Hong Kong."

Wong, currently ranked 182th in the world, becomes the second-lowest ranked player to reach the tournament's last 32 in the past decade.

He already made history by beating world number 82 Daniel Altmaier of Germany in the first round, becoming the first player from Hong Kong to ever record a Masters 1000 win.

The SAR's top men's player will next face Australia's Adam Walton, the lucky loser who's also enjoying a magical run at the prestigious Masters 1000 event.