Now, the 57-year-old is getting to grips with De Gea and the Spaniard is delighted with how things are going.
"Things are new," De Gea told ManUtd.com. "I have a new coach and we have a new formation - we are all enjoying it and working hard to adapt. Everyone is enthusiastic."
Expanding on his early work with Hoek, who has succeeded former coach Chris Woods, De Gea said: "We have mainly been working on ball control drills and things relating to the system. He is truly a great coach and we are going to learn a lot from him."
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