With Mahendra Singh Dhoni banned for a Test, Indian opener Virender Sehwag is set to lead the visiting side in the fourth and final Test at Adelaide.The Delhi dasher, who has been struggling to tackle the pace and bounce of Australian pitches in the series so far, would be eager to avoid a second straight overseas series whitewash.In fact, it was at the Adelaide Oval that Sehwag got his last Test century away from the sub-continent. Team India and its fans now hope that Sehwag regains his form at the venue and salvage some pride for India after a humiliating series loss down under.With Dhoni struggling to make a mark in the first three Tests, Sehwag would have to come up with his best strategy to conquer the ruthless Australians. However, after a humiliating whitewash in England and a series loss in Australia, his biggest task would be to regroup the team and fight for pride.What makes things interesting is that Sehwag is yet to lose a Test as captain. In the three matches that he has captained India, he has won two and one match ended in a draw. While his win record at home is 100 per cent, Sehwag has managed to maintain a decent record heading India overseas.Failure of batting line up has been the root cause of India’s failure in Australia and that is something Sehwag has to deal with. He himself has been going through a lean patch and after a fine 67 in the first innings of the Boxing Day Test he has been on a downward spiral that reached abysmal levels in Perth.advertisementIn the six innings so far in Australia Sehwag has just managed to score 118 runs at a poor average of 19.66. What makes matters a bit worrying is Sehwag’s own performance when he is leading the side. He has managed to score 173 runs at an average of 28.33 in the three Tests he has headed the side.If India have to avoid a whitewash, Sehwag holds the key. With the captain’s cap on his head, it is time for him to provide some winning shots.