Manchester United manager Ole Gunnar Solskjaer has been happy having new signing Nathan Bishop with his squad in Marbella.
The young goalkeeper was signed last month from Southend United. Also included is Jacob Carney, who is back from his loan with Stocksbridge Park Steels.
Solskjaer said, "Yeah, they will learn of course.
"They are not used to that tempo and that quality from where their normal everyday work is. It is a great opportunity for us as well to learn about their mentality and character, because you have got to have a personality as a young player coming into this group."