Chennai Super Kings on Friday suffered a humiliating eight-wicket defeat to Kolkata Knight Riders, as the MS Dhoni-led side, for the first time, lost three matches in a row at their hallowed home ground of Chepauk in their proud Indian Premier League history. It was yet another dismal batting performance by the five-time champions, who were completely dismantled by a clinical KKR side, slumping to their fifth straight loss of the season.