On the plus side, Marcos Rojo, Diogo Dalot and Nemanja Matic, who looks set to play against AZ, are pushing for a return to action.
If the session was a pointer to the team selection at Old Trafford, it will certainly be a more experienced line-up than the one that featured against Astana in our previous game in the competition.
However, Ethan Laird was also involved, along with his fellow youngsters Matej Kovar, Brandon Williams, Angel Gomes, James Garner, Tahith Chong and Mason Greenwood.
The training group is listed below but this is not the squad for the match itself.