India leg-spinner Yuzvendra Chahal replaced all-rounder Ravindra Jadeja as a concussion substitute in the first T20I against Australia at the Manuka Oval in Canberra on Friday.

Jadeja was seen limping during his match-winning innings in what appeared to be a hamstring worry. Soon after, he was hit on the head by a Mitchell Starc delivery in the final over of the Indian innings.

However, the southpaw looked in great touch as he smashed 44 runs off just 23 balls to help the visitors post 161/7 in their 20 overs.  

"Ravindra Jadeja was hit on the helmet in the final over of the first innings of the first T20I. Yuzvendra Chahal will take the field in the 2nd innings as a concussion substitute. Jadeja is currently being assessed by the BCCI Medical Team," the BCCI tweeted.

Australia head coach Justin Langer looked really unhappy with the decision as he was seen arguing with match referee David Boon.

Meanwhile, Chahal who has already picked up the crucial wickets of Australia skipper Aaron Finch, Steve Smith and Matthew Wade in the second innings, has sparked a massive debate on social media.