Tottenham star Bale is expected to sign for Real Madrid in a world record deal this week.
"How much does Pogba cost? Certainly more than Bale," Mino Raiola told Sky Sport Italia.
"If Bale is worth 120m, then Paul is worth at least twice as much. Pogba is a Salvador Dali painting, while Mario Balotelli is the Mona Lisa."
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