The left wrist injury that sent Ke'Bryan Hayes to the 10-day injured list has limited the Pittsburgh Pirates rookie third baseman's baseball activities to only throwing and not catching the ball or taking swings.

Pirates director of sports medicine Todd Tomczyk said Wednesday the club is "overall encouraged" by Hayes' progress and he's "making daily improvements" but didn't rule out he could be out longer than initially expected.

"Obviously, we want him back as safely and as expeditiously as we can, with the long term in mind," Tomczyk said, "so if it's not Day 11, it's not Day 11. We want him to feel strong, feel confident, be healthy for the majority of the season."

Hayes, who homered last Thursday in the 5-3 win over the Chicago Cubs on Opening Day, was removed in the third inning from Saturday's game at Wrigley Field. Pirates manager Derek Shelton said Hayes "caught the knob on the swing when he turned it over," guessing that "the knob kinda got in his hand awkwardly" in the first inning.

After drawing a walk, Hayes appeared to aggravate the wrist while diving back to first base.