"I got injured before the last World Cup and that is just one of those things that happens in football. Before I went to America with England, I didn’t really feel I could be a part of the squad in some ways.
"Now I feel I’ve got a much stronger case than I had at that stage of getting into the squad. I feel I’m a better player now and, hopefully, I can just keep on progressing and that will come later as I continue to improve. Without a doubt, the best is still to come from me," he told The Sun newspaper.