Ashworth was Collison's Academy coach at both Peterborough United and Cambridge United.
"Yes, that was a good few years ago now!" Ashworth told West Ham TV. "Jack initially came through the youth system at Peterborough when I was there and then came to Cambridge before he got a move to West Ham at the age of 16.
"Jack was always an exceptional player and he was always very professional in his approach to everything he did and I'm delighted he's become an established Premier League player.
"He is another one who graduated at West Ham, who have a fantastic track record of producing young players for their own team, for other teams and of course for the national team. He is another one to come off the conveyor belt of talented West Ham players."
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