"David's done remarkably well," said Hughes. "There were a few question marks over him when he first came here, possibly because he had an unhappy spell at Norwich, got an injury, and that held him back.
"But we looked at it, and Eddie Niedzwiecki had worked with him closely as a kid as well, and we didn't think it was a risk.
"Technically, we knew he was a good player, and all he needed was a platform to work at a good level every day and hopefully he would then get into the first team, which he did very, very quickly.
"He's done a lot of individual strength work, which has enabled him to cope better with the demands than he would have done, and I think there is more to come from David."