Sri Lanka will take on a resurgent West Indies side in the second semi-final of the Twenty20 World Cup today at the Oval. Kumara Sangakkara's side have been unbeaten in the tournament so far. Their secret of success lay in having two unorthodox spinners in Muttiah Muralitharan and Ajantha Mendis, plus the brilliant and unorthodox paceman Lasith Malinga. Sri Lankan batsmen are also in ominous form especially when confronted with average West Indian bowling line-up. The Sri Lankans are also very energetic in the field and they save 20-30 runs in the field. No West Indian bowler has been able to take wickets consistently in the tournament so far. West Indies main strength lie in their batting led by Chris Gayle. If he clicks and stays in for seven or eight overs, he can take the game away from Sri Lankans in no time. The West Indies also have the benefit of a long batting order with class players like Shivnarine Chanderpaul and Ramnaresh Sarwan coming in at six and seven. They also have a key player in Dwayne Bravo who is equally useful with bat and ball and can be a threat for Sri Lanka. The pitch at the Oval is expected to be batting friendly and with a fast outfield a high scoring game is in prospect. Sri Lankans will indeed be the favourites given their well rounded unit and the good form. However if West Indian batsmen manage to deal well with Sri Lankan bowlers they are in with a chance.