The in-form defender waited 93 games to get his first Premier League goals for the Club, but after bagging twice against Palace - one in each half - he says it is a relief to have broken his duck.
"To keep another clean sheet and grab a couple of goals as well is great.
"I've been wanting to add goals to my game but it hadn't been forthcoming which was frustrating.
"I put a lot of pressure on myself to get on the scoresheet - maybe too much - but I've kept chipping away and it things have just come into place."
Watch the video above to hear everything John had to say to CityTV...