Explained: Why Harshal Patel didn't bowl the full 20th over of the CSK innings

NEW DELHI: Royal Challengers Bangalore pacer Harshal Patel did manage to dismiss explosive CSK opener Devon Conway in the IPL 2023 clash between RCB and CSK on Monday at the M Chinnaswamy Stadium, but he couldn't complete his full quota of 4 overs and had to be taken off the attack after bowling two deliveries of his last over.
Glenn Maxwell completed the 20th over of the CSK innings.
Harshal bowled two full tosses above the waist and was pulled out of the attack by the on-field umpires.
WHY WAS HARSHAL TAKEN OUT OF THE ATTACK? WHAT DO THE RULES SAY?
According to the current no -ball rules (post an amendment in April 2019) if a bowler bowls two waist high no-balls or beamers, which are considered to be dangerous by the on-field umpires, he/she has to stop bowling from there on.

THE TWO NO-BALLS BOWLED BY HARSHAL
The first no-ball Harshal bowled was clearly above Moeen Ali's waist height and was called a no-ball. But Maxwell, who was stand-in captain for Faf du Plessis, who had gone off the field, asked for a DRS review. The on-field umpire's decision stood and a no-ball was given
Off the next ball, which was a free-hit delivery, Ravindra Jadeja, who had crossed over to the striker's end, could only take a single.
Image credit: BCCI/IPL
The next delivery was again above waist height to Ali. The square leg umpire though didn't call this one and Ali took a review, which showed that the ball was indeed above waist height.
Following this the umpires felt that the deliveries were 'dangerous' for the batters and after a brief discussion with Maxwell, Harshal was taken off the attack and Maxwell himself stepped in to complete the over. Harshal, who was clearly struggling for control, sent down 5 deliveries in that over, but only 2 of them were legal deliveries. Maxwell therefore had to bowl the 4 remaining deliveries.
HERE'S HOW THE RCB 20TH OVER UNFOLDED (1 NB1 LB1 WD NB1 6 WD W 1 1):
BALL 1: Harshal Patel to Ravindra Jadeja - 1 run
BALL 2: Harshal Patel to Moeen Ali - Above the waist, high full toss, NO BALL - 1 run
BALL 2: Harshal Patel to Ravindra Jadeja. FREE HIT. 1 run, leg byes
BALL 3: Harshal Patel to Moeen Ali. WIDE
BALL 3: Harshal Patel to Moeen Ali. Above the waist, high full toss, NO BALL - 1 run
The umpires intervened and asked Harshal to be taken out of the attack. Maxwell bowled the remaining 4 deliveries
BALL 3: Glenn Maxwell to Ravindra Jadeja. SIX over long-on.
BALL 4: Glenn Maxwell to Ravindra Jadeja. WIDE
BALL 4: Glenn Maxwell to Ravindra Jadeja. WICKET. Jadeja falls for 10.
BALL 5: Glenn Maxwell to MS Dhoni. 1 run
BALL 6: Glenn Maxwell to Moeen Ali. 1 run

A total of 10 deliveries were sent down in the final over of the CSK innings and 16 runs were scored. Chennai Super Kings eventually defeated Royal Challengers Bangalore by eight runs. A mind boggling 444 runs were scored in 40 overs in this match.