Thomas Tuchel explains Christian Pulisic’s wing-back role in Chelsea’s win against Arsenal

Christian Pulisic started at right wing-back against Arsenal (Photo by Marc Atkins/Getty Images)Chelsea boss Thomas Tuchel says pre-season is the best time to experiment with tactics after the German trialled Christian Pulisic in a wing-back role against Arsenal.The Blues beat the Gunners 2-1 at the Emirates thanks to goals from Tammy Abraham and Kai Havertz.Tuchel played predominantly with a back three last term, using the Cesar Azpilicueta and Reece James at right wing-back and Marcos Alonso a