India, April 28 -- As the sun beat down on the Ferozeshah Kotla ground with the temperature nudging 40 degrees Celsius, a smattering of Delhi Capitals fans watched the spin twins of Kolkata Knight Riders, Varun Chakravarthy and Sunil Narine, wheel away for close to an hour under the gaze of spin bowling coach Carl Crowe.

They tried to hit the markers on the good length and full length spots. Both missed often, but when Chakravarthy found the length, his carrom ball flattened middle-stump. Narine then disturbed the off-stump, and suddenly the tweakers seemed to discover their lengths. For these vital members of KKR's bowling department still seeking their best this IPL season, it would have come as a confidence boost ahead of Tuesday's cl...