Diamondbacks notes: Didi Gregorius to DL, Jason Kubel activated

As we wrote yesterday, there was still a chance Didi Gregorius would land on the seven-day DL despite his CT scan coming back clean.  That's exactly what happened yesterday.  However, while losing Gregorius, the Diamondbacks got Jason Kubel back.  He was activated from the 15-day DL yesterday. According to the Diamondbacks' official Twitter feed, Gregorius was placed on the seven-day DL (a relatively new roster slot designed for concussions) as he was diagnosed with a minor concussion.  In the same report, it was confirmed that Jason Kubel was activated from the 15-day DL.  Kubel had been on the disabled list with a strained left quadriceps muscle.   Tyler Emerick of MLB.com says Gregorius' injury forced the Diamondbacks to activate Kubel earlier than they would have wanted.  As the club needed to shuffle roster spots around, they decided it would be best to add Kubel back to the 25-man roster.  Kubel was slated to play in a Triple-A rehab game before being activated on Wednesday.  Moving Gregorius to the DL did not allow for that to happen.  Emerick also reports that Gregorius' DL stint was made retroactive to Saturday.  They could not wait to place him on the DL beyond yesterday if they wanted to make the move retroactive.   Zack Buchanan of the Tucson Citizen reminds us that Kirk Gibson did not want to rush Kubel back.  While Kubel had wanted to get back into live game action immediately, Gibson was concerned about the jump between at-bats in extended spring training games and Major League games.   Follow @mlbinjurynews Looking for fantasy baseball advice?