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Combining consistent speed with the mental solidity and racing decisiveness he has always shown makes Piastri a formidable rival who, psychologically at least, will be a tough nut to crack.

"He was a tough nut, Gene Hackman. But he was really good."

She adds the Spurs boss is "a tough nut to crack".

Cardiff, on the other hand, have leapt up the table in recent weeks and will prove a tough nut to crack.

Dave is a tough nut to crack, no matter what anyone thinks they know.