Albert told the Evening Chronicle: “I know him well – he has played over in Belgium for a while now and he has had some really good Press.
“He has looked impressive but I think he will have a really good test ahead of him in the remaining games of the season for Newcastle.
“He has to show he is capable of life in the Premiership because, trust me, it is not an easy transition.
“But as an international player for the United States he knows that you have to adapt in different games.
“For me the Belgian League is a much lower standard than the Premiership but now Onyewu has to make that step up.”