Virender Sehwag might miss India’s final group game against West Indies on Sunday because of a knee problem. Sehwag’s knee has been bothering him since the start of the World Cup, but his current worry is the result of swelling caused by an allergic reaction to a pain-killing injection he took after the match against South Africa.”Viru [Sehwag] has got an allergic reaction in his right knee, so we will take that call [about whether to play him] either in the evening or on the morning of the game,” MS Dhoni said at the MA Chidambaram Stadium on Saturday.If Sehwag is unable to take the field, Gautam Gambhir will most likely open the innings with Sachin Tendulkar.The game doesn’t have a lot riding on it as Bangladesh’s defeat to South Africa today means India and England are already through to the quarter-finals and barring a catastrophic defeat, West Indies can afford to lose tomorrow’s game and still join them on the basis of a better net run-rate than Bangladesh.