The Portugal international showed his class in his country's Euro 2016 quarter-final win over Poland last night, scoring his sides equalising goal as well as scoring in the penalty shoot-out.
Renato Sanches - 5 things you need to know
And asked if Sanches was worth the £35m fee, Van Gaal's assistant Giggs told ITV: "100 per cent worth it.
"I saw a lot of his games last season. Six, nine months ago, he was on fire.
"Then his form dipped. But you’d expect that. He’s a kid with a lot of talent."
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