Kyle Walker knows a good player when he sees one and he’s been seriously impressed by a player Arsenal are being heavily linked with this summer. The pacey Walker has become well renowned in world football for being one of the very best right-backs around. Indeed, his speed and ability to recover has seen him come out on top in duels with some of the world’s best like Kylian Mbappe and Vinicius Junior, among others. Of course, few wingers relish the chance of coming up against Walker because of that speed. However, one man who might well be relishing the opportunity tonight is Spain winger, Ni…