As a 25th-round draft pick, an undersized infielder from a small school, Trent Giambrone had some things to prove in pro ball. He’s doing just that. The ex-Delta State standout had a day in the Cactus League on Monday, going 2-for-4 with a double and a home run for the Chicago Cubs against the Los Angeles Dodgers. Giambrone, 5 feet 8, 175 pounds, is currently the Cubs’ No. 20 prospect (per MLB Pipeline) and is in big league camp as a non-roster invitee. He was named an organization All-Star after the 2018 season, when he batted .251 with 17 homers and 26 steals at Double-A Tennessee. He had a three-homer, nine-RBI game for the Smokies last summer. Then he went to the Arizona Fall League and hit .327 there. Giambrone, who played second base on Monday, has played six different positions in the minors, the kind of versatility Cubs manager Joe Maddon likes. A scouting report also hails Giambrone’s “full-tilt style of play.” He’ll likely begin his fourth pro season in Triple-A, perhaps the final proving ground.