England's star batter Joe Root made history on day three of the first Test against Pakistan, becoming his country's leading run scorer in Test cricket and surpassing his former captain Alastair Cook. Root's 35th century puts him at fifth on the all-time list, with Indian legend Sachin Tendulkar's record of 15,921 runs as the ultimate target. Former captain Cook predicts that at just 33, Root has the potential to overtake Tendulkar and become the all-time leading Test runs scorer.