And of course one of United's most controversial signings ever is Albert Luque, who has struggled to find his feet in England, after costing £10m from Deportivo La Coruña two years ago.
Luque, true to form, limped off after 17 minutes playing for the Reserves last night.
But new signing, young Jose Enrique, believes Luque can help him adapt quickly to the unique demands of the Premier League.
Enrique: "To have Albert Luque in the squad is great for me. To have another Spaniard there as I start out in Newcastle can only help me.
"Albert says he is going to take care of me at Newcastle. I don't know Sam Allardyce directly but I am told he has great faith in young players and that is great. It is very positive news. I met him for dinner and I was very happy to hear his plans for Newcastle.
"He treated me very well and he understands me. He knows I have to get used to a lot of new things, like changes in culture and language, but he says he's going to help me adapt to that. He says he is going to have patience with me."