Redknapp signed Townsend on-loan for QPR last season.
Redknapp recalled: "Firstly, he could play, there was no doubt about that.
"He had pace and the ability to go past people. Secondly, there was a real determination about him. I would have to say that in my time there, he was involved in one of two dust-ups. But it wasn't a major problem or anything like that. It was Andros's nature to train like he played. He gave everything and at times he upset one or two.
"But his attitude was tremendous. He had this drive, this ambition that he was going to reach the top and it is no surprise to me that he has.
"And he will get better because that is in his make-up. He just wants to keep improving."
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