The Arizona Diamondbacks placed shortstop Didi Gregorius on the 7-day disabled list with a mild concussion, retroactive to April 27. In a corresponding roster move, the D-backs activated outfielder Jason Kubel from the 15-day DL prior to Sunday's game against the Colorado Rockies.
Gregorius got hit in the head with a 93 MPH fastball thrown by Josh Outman in the seventh inning of the D-backs' 6-3 loss on Friday night. The 23-year-old had tests run Sunday morning and the team opted to disable him.
The D-backs' shortstop has hit .407 with two home runs and two RBI in 27 at-bats this season.
Kubel was put on the disabled list with a strained left quad on April 13, after suffering the injury on April 5 against the Brewers in Milwaukee.
The veteran outfielder hit .333 with two home runs and six RBI in 30 at-bats this season. Kubel went 3-for-4 with a home run in an extended spring training game on Saturday.
The 30-year-old was set to play in rehab games on Monday and Tuesday at Triple-A Reno, but the D-backs opted instead to reinstate Kubel early.