Rojas had a minor shoulder injury in the AFL but he went home early for personal reasons. He is supposed to be fine for Spring Training. I think Muzziotti is also fine though his injury and knee surgery was more serious (partially torn right patellar tendon).
I am actually surprised there are not a few more position player names. Certainly there is at least one bench spot up for grabs if not two (if they want more defense instead of Hall on the roster).
Kingery has a real shot at making the team I think unless they bring in more AAAA players. Fun fact - If Kingery makes the team we could actually keep him for 2 more years at a modest cost beyond 2023 which is the last year of his contract. He has lost so much major league service time that all we need to do for him is decline his options and offer him arbitration. He probably would be a small arbitration award no matter what he did if it was in a utility role.