As the White Sox set out on their quest to improve the roster and contend for a championship in 2027, much of the focus is on the starting rotation and the outfield. GM Chris Getz himself acknowledged the rotation and outfield as the team’s biggest offseason priorities, and admitted that improving the bullpen wasn’t high on their list. The White Sox bullpen was excellent in 2026, but Sean Newcomb’s impending free agent decision and Grant Taylor’s move to the rotation leave them with some vacancies heading into 2027. One name that’s recently hit the free agent market could be an interesting low-risk, high-reward fit for a team looking to improve the pen.
According to reports, the Fubon Guardians of the Chinese Professional Baseball League are posting right-hander Jyun-Yue Tseng and making him available for MLB clubs this offseason. The 25-year-old has played six professional seasons in Taiwan despite his young age, and has exclusively pitched in relief in all of them. Throughout his six seasons, he’s been one of the premiere relievers in the CPBL, posting a 2.36 ERA and a 12.8 K/9.
Taiwanese RHP Jyun-Yue Tseng of the CPBL’s Fubon Guardians has entered MLB’s posting system. In 2026, Tseng saved 25 games with 65 Ks in 48 games. The 25-year-old reliever has racked up 91 saves and 342 strikeouts in his 6-year CPBL career. pic.twitter.com/t96Zmq1I8W
— MLB (@MLB) November 7, 2026
For a player with a small frame– he’s listed at 5-foot-8 and 149 pounds, Tseng throws impressively hard. Before a shoulder injury in 2024 took some of his velocity, his fastball was known to touch 99, and he paired it with a slurve that became his out pitch. Tseng has gotten some international recognition during each of the last two World Baseball Classics, where he pitched in relief for Chinese Taipei.
Tseng could be a fun flyer on an inexpensive contract for the White Sox
It’s unclear whether major league teams will have any interest, and if they do, it would likely be on a minor league or inexpensive big league deal. MLB Trade Rumors has indicated that signing with a NPB team and playing in Japan for a year or two is also an option for Tseng, who could then look to make the jump in a couple years after a showcase against higher-level competition.
The White Sox have made clear that spending significant money on the bullpen this offseason isn’t a priority, but perhaps a flyer on upside here could make some sense. If the team could sign Tseng on a minor league contract, allowing him to begin the season in Triple-A (a league roughly similar to the competition level of the NPB), they’d already have him in their organization if he does take the leap and warrant a big league opportunity. Arms that can touch 99 MPH don’t just grow on trees, so an opportunity to add one for cheap is something the White Sox could consider.
In addition, it would continue the White Sox involvement in the Pacific Rim, a free-agent market they’d been basically absent from for the past two decades prior to signing Munetaka Murakami last offseason. As the organization looks to become one of the premiere destinations for international scouting and development, Tseng’s posting gives them an interesting move to consider. We’ll see if Chris Getz takes a creative route toward building a bullpen.
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