The Giants needed a spot on the 40-man roster to make room for Harrison Bader OF. Rather than DFA a fringe player, they acted pre-emptively and traded Kai-Wei Teng RHP to the Astros for Jancel Villarroel C and maybe more importantly, more international bonus space. Let's break it down:
Kai-Wei Teng RHP. DOB: 12/1/1998. 6' 4", 241 lbs. 40-man roster, 2 Options.
2025(AAA): 3-2, 3.63, 57 IP, 14.05 K/9, 3.47 BB/9, 1.42 GB/FB.
2025(MLB): 2-4, 6.37, 29.2 IP, 11.83 K/9, 5.18 BB/9, 0.97 GB/FB.
Teng was acquired in 2019 for
Sam Dyson. He's worked his way up the Giants minor league system with mixed results. At times he put up dominant K rates and other times his ERA ballooned due to
command issues. He logged some time at the MLB level last season and made some really impressive pitches but was again plagued by inconsistent command and a large ERA. It's a bit sad to see him traded but the Giants have a logjam of AAA/MLB pitchers and
Teng was probably the most logical to go. He also might have been they could get more for him than other pitchers and the extra international bonus money in addition to a non-40-man roster prospect is not a trivial return.
2025(A): .258/.360/.385, 6 HR, 20 SB, 11.3 BB%, 17.2 K%, 372 PA.
2025(A+): .263/.295/.404, 2 HR, 4.9 BB%, 21.3 K%, 61 PA.
Compact catching prospect with strong hit and power tools. Reportedly has a strong throwing arm but still needs work on his all-around catching game. Got his feet wet in A+ ball at the end of last season so that is where he will probably start 2026. With Drew Cavanaugh moving up the Giants have room at the A+ level for a catching prospect.
International Bonus Pool Room: It's my understanding that no actual money changes hands in these deals, rather the receiving team gets more room to spend their own money on international prospect signings. I really like this part of the deal for the Giants as it shows they still prioritize the international market in the
Buster Posey era.
Summary: It's a bit sad to see Teng traded but the Giants have a logjam of AAA/MLB pitchers and he was probably the most logical to go and they got a legitimate catching prospect with 2 years before Rule 5 eligibilty which is a plus. He also might have been they could get more for him than other pitchers and the extra international bonus money in addition to a non-40-man roster prospect is not a trivial return.