New Delhi: Veteran off-spinner Sunil Narine snapped up three crucial wickets in the space of seven balls to help Kolkata Knight Riders beat Delhi Capitals by 14 runs and keep their playoff hopes alive in the IPL here on Tuesday. Sent in to bat, KKR, who came into the game with three losses in their last five matches, managed to post 204 for nine, riding on a blazing start by their top-order batters. Chasing the total, DC were 62 for 3 in seven overs, but Faf du Plessis (62) and Axar Patel (