123.20 Sehwag's batting average in Tests at Chennai. The last time he batted at the venue he scored the fastest triple hundred in Test cricket (v South Africa in March 2008).        

50 The Chennai Test will be Test No 50 for England on Indian soil. They will be first visiting side to reach this landmark.

19 Years and 26 days will be the career span for Sachin Tendulkar when he takes the field on Thursday. It will make him the longest serving player in Indian Test history ahead of Lala Amarnath, who played Test cricket for exactly 19 years.

6 Number of runs Tendulkar needs to score to complete 2,000 Test runs against England. He will become the second Indian batsman to aggregate 2,000 runs against England after Sunil Gavaskar (2,483 in 38 Tests at an average of 38.20).

2 Rahul Dravid is just two short of equalling Mark Waugh's world record of maximum catches by a fielder in Test cricket (191).

1 Number of sixes Sehwag needs to equal Kapil Dev's Indian record of most sixes (61) in a Test career.