Iconic former Manchester United midfielder Roy Keane has now told one Arsenal star that he needs to take a step forward in his game. Roy Keane has now given his verdict on what one Arsenal player must do to take his game to the next level. In his time as Arsenal manager, Mikel Arteta has improved plenty of players. The likes of Gabriel Magalhaes, Ben White, Bukayo Saka, Martin Odegaard, and Declan Rice, amongst others, have come on leaps and bounds since the Spaniard took charge at the Emirates Stadium. For instance, Rice has discussed how Arteta has encouraged him to adopt a more advanced rol…