New Delhi, June 28 -- If India, under pressure, are to upstage Australia in their biggest game yet in the T20 World Cup, their pacers must produce something they haven't managed so far: wickets. Australia, dominant despite Phoebe Litchfield's absence due to injury, have looked solid and are almost set to seal a semi-final berth. India, meanwhile, carry more than one weakness as they go into Sunday's game at Lord's. Their fielding and middle-order have been talking points but their seamers have managed just four wickets - the joint-fewest among all teams at the tournament alongside Sri Lanka. Australia's pacers, in contrast, have taken 13 wickets in four matches. South Africa pacers have already taken 22 wickets in four games, putting India'...