Cincinnati Reds center fielder Billy Hamilton exited Wednesday’s game against the Milwaukee Brewers with a fractured left thumb and is expected to go on the 10-day disabled list, the team announced.

Hamilton only took one at-bat on the afternoon and flied out in the bottom of the first. The injury occurred on a 2-1 pitch, when the speedy outfielder hurt his thumb on a bunt attempt. He was relieved by Phil Ervin, who went 1-for-4 on the afternoon.

Hamilton is hitting .248 with nine triples and a league-leading 58 stolen bases on the season, accounting for a 0.9 WAR.

Last season was arguably the best for Hamilton, who reached career highs in average (.260), stolen bases (58) and walks (36) — three categories the Reds are looking to cash in on for their center fielder to be more of a regular leadoff hitter than just a gimmick on the basepaths.