Alastair Cook leaves the field after scoring 244 not out to put England in a strong position on Day 3 of the fourth Ashes Test. David Gray / Reuters
Alastair Cook leaves the field after scoring 244 not out to put England in a strong position on Day 3 of the fourth Ashes Test. David Gray / Reuters

Alastair Cook proud of record-breaking double hundred for England in fourth Ashes Test in Melbourne