Ronaldo said: "Van Gaal is a fantastic coach and I am certain he will make United champions again - if not this year then very soon after that.
"Sir Alex Ferguson said that Van Gaal will need time - and he is right. Because, in the beginning at United, even Sir Alex didn't win anything for a few years.
"To get a good squad and a good team takes time, so lets give Van Gaal the time he needs."
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