John has had a tough end to the season and there is a lot of people shooting him down," he said.
"He does take a risk, he's a ball playing centre-half and, up until the latter half of the season, everyone was giving him the plaudits.
"It's great when you get that but you have to deal with the other side of football like now when people are having a pop at you.
"I went through it and I'm sure other players who played in a similar fashion went through it. When you are labelled as this then you're going to make mistakes. He's got to learn to live with that."
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