Former Man United star Nani has claimed the club missed out on an 'unbelievable' player in Geovany Quenda, who has since sealed a move to Chelsea.
Earlier this month, Chelsea completed the signings of Sporting Lisbon youngsters Quenda and Dario Essugo in a £62.4m deal - with Quenda's move costing £43.7m.
Man United had been exploring a deal for Quenda, who turns 18 in April and previously played under their now head coach Ruben Amorim at Sporting.
However, the Red Devils did not act swiftly enough and the talented teen has since sealed a move to United's rivals Chelsea.