He told Sky Sports: "[They have] signed [Aaron] Wan-Bissaka and the young boy from Swansea [Daniel] James. But the biggest of the summer was Maguire.
"He did it on Sunday against Chelsea, he was magnificent. He's a great defender, a leader.
"The way he speaks to the players and his demeanour, confidence and courage when he has the ball, I think he's the perfect signing for Manchester United."