Stuart Broad backs Alastair Cook to ram home England’s advantage at MCG

• ‘That was Cooky at his best. You know he’s not just happy with a hundred’
• Jimmy Anderson praises Broad after England take Ashes fight to AustraliaStuart Broad hopes Alastair Cook can turn his first Ashes century in six years into a major score and help England take complete control of the fourth Test.Cook had not reached three figures against Australia since the 2010/11 tour of Australia and had failed to record a half-century in his six previous innings on this t