CPL side Barbados Tridents' Pakistani fast bowler Mohammad Irfan produced the most economical four-over spell in T20 history, against St Kitts and Nevis on Saturday. The 36-year-old bowled 23 dot balls and leaked a single off his 24th and final delivery, finishing with figures of 4-3-1-2. Irfan beat the bat a total of 17 times and drew one edge.