Arsenal have become one of the best teams in the world thanks to Mikel Arteta. The Spaniard has instilled incredible professionalism within his squad, and that has helped them reach a whole new level compared to where they were five years ago. Arteta demands 100 per cent from every single Arsenal player in training as well as in games. He does not accept anything less, and everyone seems to be putting in the hard work. Rice is a phenomenal trainer himself, but he thinks there’s someone more professional than him in the Arsenal squad. Declan Rice says Takehiro Tomiyasu is the ‘most professional…