Arsenal have established themselves as genuine title challengers under Mikel Arteta’s stewardship and are certainly one of the favourites this season. The Gunners narrowly missed out to Manchester City last term but they’re on course to have an impressive summer transfer window. Riccardo Calafiori has already joined Arsenal and Mikel Merino could follow him, so their squad is in really good shape at the moment. Arteta has changed the mood around Colney and even brought in a dog named Win to help harness a winning mentality. That said, it’s just emerged that one of his players is also drawing i…