Alastair Cook became the youngest and first English batsman to score 10,000 Test runs as his side sealed series win over Sri Lanka at the Chester-le-Street last night.Left-handed opener Cook needed just 5 runs to surpass the record as he made 47 not out in the second innings against Sri Lanka in the second Test. He became just the 12th player of all time to make 10,000 Test runs. At 31 years and 157 days he is the youngest player ever to achieve the feat, beating the previous record of India Sachin Tendulkar, 31 years and 326 days. England won the second Test by 9 wickets with more than a day to spare to go an unbeatable 2-Nil up in the three-match series. Set 79 for victory after making Sri Lanka follow-on, England finished on 80 for one. Earlier, England had made 498 in the first innings, after which the Lankans were skittled at 101 and were forced with follow on. However, Dinesh Chandimal's fighting hundred kept England waiting as Sri Lanka made 475 in their second innings.