The beauty of a Test match lies in its uncertainty – in a matter of overs the dynamics can completely change and at the Optus Stadium in Perth, the hour after lunch on Day 4 completely changed the Test match.

At lunch, Australia was cruising at 190-4 and wrestling the Test match away from Indian reach. They had a well set Usman Khawaja batting with captain Tim Paine and on a difficult Perth pitch, batting India out of the game.

Mohammed Shami India cricket team
Shami has bowled one of the most vicious spells ever seen by an Indian fast bowlerRyan Pierse/Getty Images

The Indians toiled hard in the first session with no success as they failed to make any inroads into the host's overnight wickets column. But in a matter of a couple of overs after lunch, Mohammed Shami bounced three Australian top order batsmen out and Jasprit Bumrah followed up to dismiss Pat Cummins of a delivery that refused to bounce.

Shami then followed it up with a bouncer that hit Nathan Lyon on the helmet and immediately after bounced him out too!

Twitter went crazy at the sudden Indian revival that has once again thrown the Test match right into the melting pot.

Australia has been reduced to 213-9 from 190-4 at lunch and Shami's spell might arguably be the most vicious spell of fast bowling by an Indian on Australian soil, or perhaps anywhere.