His ball and boundary count is rediculous!
Dont really think he'll get to the magic 400, he was in a similar situation not so long ago.
The previous times when Sehwag got 300+, he was out of gas come the following day and more importantly the opposition had genuinely quick bowlers to dislodge him the following day (Ntini and Sami)
Sri Lanka on the other hand have 3 very gentle medium pacers. Welegedara seemed to pick up a knock during the final session. SO the Sri Lankans may only have 2 seam bowlers. Also Murali has been pounded into the ground.
So in theory this would be Sehwag best chance of breaking Lara's record.