England international impressed with transition made by the Canaries to Premier League and pinpoints former colleague for his impressive progression after leaving the club
Ruddy spent five seasons at Everton, managing just one first team appearance before moving to Paul Lambert’s Canaries.
Norwich have deified many who expected them to struggle on their return to the Premier League and Phil Jagielka has been suitably impressed with the side who the face at Carrow Road in their next game.
"A lot of bookies and others might have expected them to struggle but they've been flying," Jagielka told Sky Sports.
"Their defensive record speaks for itself. They've conceded a few goals over the course of the season as everyone does but nobody has had an easy game against them.
"They will attack you - they often play two up front - but he's got them well drilled and they haven't been turned over.
"Grant Holt has scored some important goals while John has done very well. When John was here there was never an issue over whether he was a good goalkeeper. He stopped shots and did the rest really well."
Ruddy went on 10 different loan spells while at Everton before eventually signing a permanent deal at Norwich, though Jagielka always believed he had he quality to be a Premier League goalkeeper.
"He had very good goalkeepers in front of him, and sometimes when you do play a team where you're going to be busy in goal it's easier to keep your concentration.
"If you speak to managers, they'll say the best goalkeepers aren't those that make 10 great saves in a game, it's the ones who make one or two.
"Man United have been through quite a lot of goalkeepers because they've bought guys who are good shot stoppers, but haven't maybe saved the key ones in games.
"John had to go out and play a lot of first-team football to realise his potential. Now his concentration has got a lot better.
"In goalkeeping terms, he was a baby here, and he's still a young man but he's grown into it. His kicking is great, he's a big boy and he has always been a good shot stopper."