The future may be arriving ahead of schedule for Chinese women’s tennis.
Sixteen-year-old Sun Xinran continued a remarkable WTA Tour debut on Saturday at the China Open, defeating 27th-seeded Cristina Bucsa 6-4, 7-5 to reach the third round in Beijing.
Ranked No. 582 and playing her first WTA main draw, Sun has earned herself a date with three-time Grand Slam champion Coco Gauff.
Who exactly is China’s newest rising star? Here are eight things to know about Sun Xinran.
1. She’s the first player born in 2010 to win a WTA 1000 match — and she’s already won two
Sun, born July 23, 2010, became the first member of her generation to win at WTA 1000 level when she defeated Eva Lys in the first round in Beijing. Lys retired with Sun leading 6-1, 3-0.
Sun took out World No. 35 Bucsa in straight sets on Saturday, giving her two wins in the first two WTA main-draw matches of her career.
Was Sun surprised to be playing this well in her first big-stage moment?
“This is not something surprising because I know my tennis and I trust myself I could do these things,” she said. “I’m not worse than other players.”
2. She’s the junior World No. 1 — and has reached three consecutive Grand Slam finals
Sun has been building toward this moment throughout a spectacular junior season.
She reached her first Grand Slam girls’ singles final at Roland Garros, becoming the first Chinese player to reach the junior singles final in Paris before falling to Alisa Oktiabreva on Court Simonne-Mathieu.
A month later, she reached another final at Wimbledon, where Anna Pushkareva rallied to defeat her 5-7, 6-3, 6-4.
Sun kept rising and made it three consecutive major finals at the US Open. This time she defeated Pushkareva 6-4, 4-6, 6-0 to become China’s first junior Grand Slam singles champion since Wang Xiyu won the US Open in 2018.
3. She’s Chinese — but Serbia has played a huge role in making her the player she is
According to the WTA, Sun was born in Shenzhen and was introduced to tennis through her mother, a recreational player.
But one of the more fascinating parts of her story is where her formative tennis years have been spent.
She moved to Belgrade with the help of her family when she was just 10 years old and has lived in Serbia ever since. She trains at Tennis Park Belgrade and has worked with coaches Goran Zivotic and Goran Krivokuca for the past five years.
4. Zheng Qinwen is her hero — and Rafael Nadal helped shape her mentality
Sun hasn’t had to look far for inspiration this week.
After Zheng Qinwen praised Sun’s junior accomplishments and said the teenager had achieved things that she herself hadn’t managed at the same age, Sun revealed that the two had already spoken.
“When I was in the gym, I talked to her,” Sun said. “I told her she is my idol.”
Sun pointed to Zheng’s Australian Open run and Olympic gold medal as milestones she admires, adding: “I’m still a junior player. I will continue to learn from her.”
Her other great tennis idol is Rafael Nadal.
Sun has said she admired Nadal’s willingness to give everything in every match and never give up, an attitude she hopes to emulate herself.
5. She’s pumped to face Coco Gauff
The reward for the biggest victory of Sun’s fledgling professional career is an even bigger test. Next up is No. 3 seed Coco Gauff, the 2024 Beijing champion.
“I’m really, really happy to have this chance playing Coco Gauff because she’s a Grand Slam champion,” Sun said. “I’ve been watching her matches on TV. This is a really great opportunity through my own effort.
“I will value this opportunity. I will try to do my best.”
Asked again about the matchup, Sun couldn’t hide her excitement.
“She’s a really amazing player. She’s Grand Slam champion. So I’m so excited to play with her. I respect her. So I just try to play my best tennis point by point and we will see what happens.”
6. She knows becoming a professional is about more than hitting a tennis ball
Sun may be making the transition from junior tennis look remarkably easy, but she is under no illusion about what becoming an established professional requires.
“Tennis is not only about the strategies and tactics,” she said Saturday.
Instead, Sun pointed to everything that happens away from the match court – preparation, warm-ups and recovery – as areas she needs to master.
“I think off the court it’s better to be balanced, how do you do warm-up, after the match, how do you do the recovery. This is really important.”
7. Beijing isn’t her first taste of success against professionals
Sun arrived in Beijing ranked No. 582, but she had already begun making inroads at professional level before her breakout week.
She won back-to-back ITF W15 titles in Sharm El Sheikh late in 2025 and has won 19 of her last 23 professional matches, per Tennis Abstract.
8. Welcome to the Top 500
Sun is assured of making her Top 500 debut after Beijing — quite a jump for a player who started the week outside the Top 580. She’s actually No.418 in the live rankings as of today.
No matter what happens against Gauff, the teenager has already transformed her first WTA main draw into something memorable.
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