No DRS at Wankhede after power failure, CSK suffers as batsmen denied review

There was no Decision Review System (DRS) available at the start of the Indian Premier League match between Chennai Super Kings and Mumbai Indians due to a power issue at Wankhede Stadium. The toss was delayed a few minutes as well as one of the floodlight towers couldn’t get enough electricity. 
“Before the toss there was a short circuit and there was an issue in the system. Because of this, the toss was delayed. One floodlight tower wasn’t getting enough power supply. The officials are working to restore the system,” a Mumbai Cricket Association official told The Indian Express. 
Meanwhile, CSK lost Devon Conway lbw for a golden duck in the very first over. But Conway was unable to review what looked like a tight call at best with the ball angled in and hitting Conway in front of leg stump. In the next over, Robin Uthappa made the review signal as well after being given lbw off Jasprit Bumrah, but had to accept the on-field umpires’ call and walk off .