First MLB CHINA Development Center signed player Xu GuiYuan first WBC At-Bat 中国棒球发展中心许桂源WBC首打击

【很高兴MLB 中国 打击姿势、观念都走向优秀的美式训练】
Xu shows good contact with plate discipline in his first WBC at-bat 2017
.
时间终将证明科学化的打击姿势、美式棒球风格最适合亚洲球员

---