Root unmoved by Warne’s call for Buttler to be England Test captain

• Root says his batting is unaffected by leadership role
• ‘I am comfortable with where we are at as a team and my role’It almost comes with the territory for an England captain to have his job questioned by Shane Warne. But Joe Root is comfortable the Test team are heading in the right direction and that his batting in the longer format remains unaffected by his leadership role.In the past few days – and with an autobiography to publicise – Warne, the great Aus