Cheng Si-yu is a pioneer in East Asian women’s football, serving as the dependable last line of defense for the Chinese Taipei national team for over a decade. At 36, she remains a vital figure at Okayama Yunogo Belle, having made history as the first Taiwanese goalkeeper to reach Japan’s top-tier professional league. Known for her consistency and positional intelligence, Cheng is more than just a shot-stopper; she is a veteran leader who has bridged the gap between the amateur roots of Taiwanese football and the elite professional standards of Japan.
At a Glance
- Full Name: Cheng Ssu-yu (Cheng Si-yu)
- Date of Birth: September 25, 1989
- Place of Birth: Kaohsiung City, Taiwan
- Position: Goalkeeper
- Current Club: Okayama Yunogo Belle
- National Team: Chinese Taipei
The Story So Far
Cheng’s journey began in the port city of Kaohsiung, a region known for producing tough and resilient athletes. She grew up during a time when women’s football in Taiwan was still in its early stages, meaning her developmental years were spent in university and amateur teams rather than high-tech academies. This early environment forced her to develop a high level of self-motivation and adaptability—traits that would eventually allow her to thrive as a foreign player in the highly competitive Japanese leagues.
Between 2014 and 2019, Cheng became a cornerstone of the Taichung Blue Whale dynasty. During these five years, she helped transform the club into the dominant force of the Taiwan Mulan League, winning three consecutive titles. While she was a local star in Taiwan, Cheng felt she had hit a ceiling. In 2020, she made the bold decision to move to Japan, signing with Okayama Yunogo Belle.
Her move to Japan was a massive step up in quality. Despite the language barrier, she quickly proved her worth, making ten appearances in her first season. Her hard work was rewarded in 2021 when she signed with JEF United Chiba in the WE League—Japan’s first fully professional women’s competition. By doing so, she became the first Taiwanese goalkeeper to break into the top flight of Japanese professional football. Although she only made one appearance at the top level, training daily with elite international strikers and world-class coaches refined her skills and extended her career at the highest level.
On the international stage, Cheng has been the heartbeat of the Chinese Taipei defense. Her most defining moment came during the 2022 AFC Women’s Asian Cup. She led her team through a grueling campaign, including a clean sheet against Iran and a heroic 120-minute performance in the quarter-final against the Philippines. While the team ultimately lost that match on penalties, falling just short of World Cup qualification, Cheng’s leadership and resilience earned her legendary status among Taiwanese fans.
Style of Play & Tactical Analysis
Cheng is often described as a steady hand in goal. She is not a goalkeeper who relies on flashy, acrobatic saves for the cameras; instead, she focuses on being in the right place at the right time. Her game is built on high-level concentration and the ability to organize her defenders to stop threats before they even result in a shot.
Standing at 1.72 meters, Cheng is not the tallest goalkeeper on the international stage. She makes up for this with exceptional footwork and angle management. By constantly shuffling her feet and staying balanced, she reduces the space available to strikers, making the goal look much smaller than it actually is. As she has moved into the veteran stage of her career, she has adopted an economical style. This means she uses her intelligence to read the flight of the ball early, allowing her to make saves through good positioning rather than having to rely on raw, explosive athleticism.
Furthermore, Cheng is a reliable distributor of the ball. In the modern game, goalkeepers are expected to help start attacks, and her experience in Japan has made her comfortable with the ball at her feet. Whether she is playing a short pass to a defender or a long ball to a winger, her decision-making is calm and calculated, providing a sense of security to her entire team.
Future Outlook
Now 36, Cheng is moving into a new phase of her career where her experience is just as valuable as her shot-stopping. At Okayama Yunogo Belle, she has taken on a mentor role, helping to guide the next generation of Japanese goalkeepers. Despite her age, she remains a regular member of the Chinese Taipei national squad, recently being called up for high-profile friendlies against world-class opposition like Australia in late 2024.
In the near term, Cheng is expected to continue providing vital cover and leadership for both club and country. Looking further ahead, there is a strong possibility she will transition into coaching. Having spent years learning the rigorous training methods used in Japan, she is perfectly placed to return to Taiwan in the future and help modernize goalkeeper training for the next generation of Blue Magpies.
The Trophy Case (Honours)
- Taiwan Mulan Football League Champion: 2017, 2018, 2019 (Taichung Blue Whale)
- First Taiwanese Goalkeeper to sign a professional WE League contract (JEF United Chiba)
The Record (Career Statistics)
| Season | Club | League | Status/Role |
| 2014–2019 | Taichung Blue Whale | Taiwan Mulan League | Starter (3x Champion) |
| 2020 | Okayama Yunogo Belle | Nadeshiko Div 2 | Starter/Rotation (10 Appearances) |
| 2021–2022 | JEF United Chiba | WE League (Tier 1) | Squad GK (1 Appearance) |
| 2022–2023 | Okayama Yunogo Belle | Nadeshiko Div 2 | Starter |
| 2024–2025 | Okayama Yunogo Belle | Nadeshiko Div 2 | Veteran / Mentor |
