What happened: The CPBL's Fubon Guardians have officially made closer Jyun-Yue Tseng available via the MLB posting system. Major League Baseball franchises may begin formal contract discussions with Tseng starting Sunday at 8:00 a.m. ET. The 25-year-old reliever is seeking to transition to North American baseball ahead of the 2027 season.

Why it matters: Tseng provides major league front offices an uncommon opportunity to acquire established international bullpen talent in his physical prime. CPBL postings directly to MLB remain rare, giving teams an alternative avenue to bolster relief depth without traditional domestic free-agent bidding. His availability allows clubs rebuilding their bullpens to pursue a high-strikeout arm under club-controlled terms.

What to watch: Interested MLB clubs will begin submitting contract proposals as the negotiation period gets underway. Tseng must finalize an agreement with a major league team before the posting deadline concludes.