Roeder, now in charge of Watford, told the Evening Chronicle: "I first came across Michael when I was coaching England and Glenn Hoddle brought him into the squad as an 18-year-old.
"Those early hamstring injuries when he was a lot younger could have something to do with it. But really I believe it all down to bad luck.
"That's all you can say. And make no mistake about it, Michael will be as miserable as sin that he is back in Newcastle for treatment today.
"He wanted to be out there for England on Wednesday night. Just like he wanted to be playing for Newcastle against his old club on Saturday.
"And I cannot let anyone get away with saying that Michael puts his country before his club. This is an insult to him.
"He is the perfect professional and if some people say that Michael only does want Michael wants to do this shows the strength of his character."