Carrie Underwood's dog is in recovery after being severely injured and is now undergoing some in-house fitness classes of his own

Carrie posted this update with the caption:
Right before Christmas, my little Ace suffered a herniated disk. 😢 He was completely paralyzed in his back end for a couple of days and, with rest, soon got mobility back in his right side...his left side is slowly getting better but we have a long way to go...he's taking his physical therapy like a champ! And, of course, this is too adorable not to post!