The pair were on opposite teams as United beat the Blades in the 2011 FA Youth Cup final.
They could meet again when United travel to Bramall Lane on Sunday week, their first game after the international break.
“It has turned out strange," added Maguire.
“Ravel, when he was a young boy, was a top player. I haven't played against him since [the 2011 final] but he's got all the talent to be a top player and I hope he does really well with Sheffield United."
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