After calling Adam Wharton up this week, Gareth Southgate has now explained what he liked so much about the Crystal Palace star. Few would have predicted that four Crystal Palace players were set to be called up into the provisional England squad for the Euros this summer. But on Tuesday, that’s exactly what happened as Gareth Southgate chose four of Oliver Glasner‘s best to head to England training camp before the Euros. Dean Henderson, Marc Guehi, Adam Wharton and Eberechi Eze have all been called up and stand well-placed to make the actual squad given the qualities they bring. Now, Southgat…