Baxter said: “We only finished our season 10 days ago so Henrik is still in good shape.
“If he works reasonably hard over Christmas – which I presume he will do – and gets in some good work with United that will bring him back up to speed.
“Of course Henrik has got to adjust to the pace of the game, the same as everyone else.
“But for the job United want him to do, his fitness will not be a problem.”
He added on Man Utd’s match against West Ham on Sunday: “If Henrik had been available, I am sure it would have been an interesting one for Sir Alex to tinker with. He would have given him another option.
“I know he is looking forward to the challenge and of course I will be monitoring his progress.”