The team management clams up and the players have fingers on their lips. But reports about simmering tensions between Indian captain MS Dhoni and vice-captain Virender Sehwag are fast threatening to undermine Indias defence of the ICC World Twenty20, which begins on Friday.Rumour mills are abuzz that the two had an ugly faceoff during a team meeting, though it could not be independently confirmed if it was over the status of Sehwags shoulder injury. Though neither protagonist is willing to   read more »