South African skipper Graem Smith has won the toss and chose to field first against West Indies in Group 'B' Day-Night match in the ICC Cricket World Cup at Delhi's Feroz Shah Kotla stadium today. All India Radio's live commentary is on and can be heard on Rajdhani Channel and FM Gold. Earlier, Pakistan have won their opening match crushing Kenya by 205 runs in Group 'A' encounter at Hambantota in Sri Lanka yesterday.