The 23-year-old centre-back is yet to feature under Chris Hughton despite being involved in the Canaries' pre-season plans.
"I couldn't work out why I kept getting hamstring injuries and it may have been because I was doing too much work in the gym and straining my back," he said. "I improved after cutting out the dead-lifts, and I got myself fit again.
"There's nothing like playing games to make you feel sharper, because it was frustrating not being in the team at Norwich."
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