Royal Challengers Bangalore (RCB) rode on an AB de Villiers special and a solid final over from Mohammad Siraj to inflict a one-run defeat on Delhi Capitals (DC) in the Indian Premier League (IPL) in Ahmedabad on Tuesday. The ever-reliable De Villiers scored an unbeaten 42-ball 75 to power RCB to 171 for five before their bowlers, led by Harshal Patel (2/37), Mohammed Siraj (1/44) Kyle Jamieson (1/32), restricted DC to 170 for four. Needing 14 off the final over, DC fell agonisingly