David de Gea is disappointed Javier Hernandez has left Manchester United for Real Madrid.
De Gea suffered a difficult start to his United career, often criticised for a lack of communication with his back four.
But, with the faith of then-manager Sir Alex Ferguson and Hernandez's friendship, De Gea has grown into a consistent presence in United's defence - especially during a rocky period under David Moyes.
"Javier plays in few matches but still scores many goals. I do not doubt that he will be a triumph at Real," he told Cope Radio.
"If the coach has confidence, he always offers the maximum on the pitch.
"Personally, he is a big person. For me, he is one of the best companions that I've had in my career.
"I will always be grateful for his help when I arrived at Manchester United.
"I am totally convinced that this season he will be very important for Real."
