Astros first baseman Yuli Gurriel underwent surgery on his left hand Wednesday to remove a hook of hamate bone. Gurriel, who developed into the Astros' everyday first baseman last season while helping lead Houston to its first World Series title, confirmed the surgery by a picture on social media. In his second MLB season, Gurriel, 33, slashed .299/.332/.486 with 18 home runs and 75 RBIs. Gurriel broke into the majors in 2016 after defecting from Cuba that year, but played in just 36 games. Last season, however, he appeared in 139 games while becoming an integral part of the Astros lineup.