Chennai:India's opening batsman Virender Sehwag today hit his seventh Test hundred when he made 155 against Australia in the ongoing second Test at Chennai. Sehwag has been averaging just about 25 runs in one-dayers this year. But if the real test of cricket is Test cricket, then Virender Sehwag is still getting an A plus. For a top order batsmen, Sehwag's technique is certainly not what one would find in any coaching manual. But there's also no better sight for his fans when he's blasting the bowlers all over the ground. Perhaps it was his lack of runs in the first Test that made him to get to his seventh Test century with a four and not a six. Now Sehwag is the third most successful Indian opener in terms of 100's. Only the legendary Sunil Gavaskar (34) and Navjot Sidhu (9) rank ahead of him. Ravi Shastri comes much lower down that list since just four of his eleven hundreds were made as an opener. However, the search to find a regular opening partner for Sehwag is turning out to be a worry for the Indian team management. Yuvraj Singh is being tried in the Chennai Test but he wasn't too convincing. Perhaps there could be a case for giving Chopra another chance. So far Chopra and Sehwag have had four century-stands in Tests which makes them the third most successful Indian pair. Sunil Gavaskar and Chetan Chauhan shared ten 100-run opening partnerships. Gavaskar and Anshuman Gaekwad made 100-run partnerships on four occasions. Flying solo as an opener hasn't been too much trouble for Viru at Chennai as he redefined the concept of how openers should play. So in his case the motto is, you live by the sword and you make others die by it.