Taiwanese Reliever Jyun-Yue Tseng Set to Enter MLB Posting System

Taiwanese Pitcher Headed to MLB Market

Fubon Guardians reliever Jyun-Yue Tseng is officially entering Major League Baseball's posting system. The 25 year old right handed pitcher will be available for MLB teams to sign as a free agent starting Sunday.

Tseng will have a designated window to reach an agreement with a club, running through Dec. 22. However, MLB is likely to lock out the Major League Baseball Players Association when their current collective bargaining agreement expires on Dec. 1. That labor decision could significantly cut short his negotiating time with prospective teams.

Strong Track Record in CPBL and International Play

Tseng brings solid production from Taiwan's Chinese Professional Baseball League. Pitching for the Fubon Guardians this year, he finished with a 5-3 record and 25 saves across 48 appearances. Over 52 1/3 innings of work, the right hander recorded 65 strikeouts while giving up just 13 walks.

His recent success extends to the international stage as well. Tseng pitched in his second World Baseball Classic earlier this year. He delivered hitless relief innings against both South Korea and the Czech Republic, securing one save during the tournament. Against South Korea, his four seam fastball averaged 93.7 mph, and he mixed in cutters to keep hitters off balance.

Tseng has been on the radar for years. He competed in the 2014 Little League World Series and later earned the CPBL Rookie of the Year award in 2021.

Financial Details of the Posting Agreement

Any MLB franchise signing Tseng will owe a posting fee to the Fubon Guardians under the current agreement between MLB and the CPBL.

If Tseng signs a major league contract, the posting fee starts at 20 percent of the first $25 million. It drops to 17.5 percent for the next $25 million, and 15 percent for any contract amount exceeding $50 million. A supplemental fee of 15 percent also applies to any earned bonuses, salary escalators, or exercised options in the deal.

If he signs a minor league deal, the fee is calculated as 25 percent of his signing bonus. Should his minor league contract include major league terms upon being selected to a 40 man roster, the MLB team must pay a supplemental fee of 15 percent on any money earned under those major league terms.