Broadcasters explain that all nine Vanderbilt players are wearing electronic wristbands showing what pitch the coach is calling from the dugout
— Jomboy Media (@JomboyMedia) February 20, 2022
It’s the first year this is legal in college baseball pic.twitter.com/AohbaLEGfs
MLB
米大学球界で「サイン伝達時計」がお披露目！ サイン盗み＆試合時間短縮対策にメジャーでも導入なるか
THE DIGEST編集部
2022.02.21
