The White Sox announced Saturday that Robert was diagnosed with a moderate sprain of his left-thumb ligament that will keep him out of game action for 10 weeks.
After defecting from Cuba, Robert signed with the White Sox in May 2017. He received an invitation to spring training this season, hitting a grand slam in the same contest the injury occurred.
Robert has just 28 games of experience in the Dominican Summer League. The 20-year-old lived up to his potential in that brief showing last season, hitting .310/.491/.536 with nearly as many walks (22) as strikeouts (23) in 84 at-bats.
MLB.com ranked Robert as Chicago's No. 3 prospect this season. His injury timetable will have him back on the field in mid-May as he continues to work his way through the White Sox system.