La Gazzetta dello Sport says Giuntoli recently traveled to England to meet with his United and City counterparts.
Giuntoli offered both Manchester giants midfield pair Douglas Luiz and Nicolo Fagioli.
A former City player, Luiz was sold by Aston Villa to Juve just this summer, but has struggled to find a place in coach Thiago Motta's plans. He cost Juve €50m plus €1.5m in bonuses.
Meanwhile, 23 year-old Fagioli, an Italy international, is also not in Juve's long-terms. Both midfielders are now being hawked across Europe by Giuntoli.
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