DENVER -- The Rockies on Wednesday recalled infielder Brendan Rodgers, their top prospect per MLB Pipeline, from their alternate training site and placed struggling outfielder David Dahl on the injured list with lower back soreness.

Rodgers did not start Wednesday’s game against the Astros, though. Chris Owings, who had not started in a week because of a sore left hamstring, was in at second base, while Ryan McMahon played first.

Last year, Rodgers made his anticipated debut but hit .224 and was limited to 25 games with a right shoulder labrum injury that required surgery.

It isn’t clear how long Dahl has been hurting, or the role the injury played in his 0-for-17 slump. He sat out two games before starting Monday at Houston and going 0-for-2, then was scratched from the lineup before Tuesday’s game.

“It’s an area that is sore that encompasses the lower back and his side,” said Rockies manager Bud Black, “so that whole area was fired up yesterday.”

Dahl dealt with core soreness toward the end of Summer Camp, but he started the season as Colorado’s leadoff hitter and went 3-for-4 on Opening Day.

However, he has had two multi-hit games since, and his average is down to .189 with no home runs and seven RBIs. Garrett Hampson took over as the leadoff man on Aug. 7, and moved from utility duty to center field -- Dahl’s normal position -- shortly thereafter, while Dahl slid over to left.

Dahl, 26, has seen the biggest prolonged slump of his career this year. A force when healthy, he made his first All-Star Game appearance last season, but various injuries have cost him time over the last four season, including a stress reaction in his back that kept him out of the Majors in 2017.