Chennai, Apr 30 (UNI) A fiesty knock of 88 runs by Sam Curran and an equally attractive 32 by Dewald Brevis helped five time winners Chennai Super Kings (CSK) to a commanding position, before Punjab Kings spinner Yuzuvendra Chahal applied the brakes with four wickets in an over, including a hat-trick, as CSK were bowled out for 190 with four balls to spare in their IPL match at Chepauk here on Wednesday night.