Jasprit Bumrah has played 14 Tests, 64 ODIs and 50 T20Is for India so far.
Apart from his action, Bumrah also has a very short run-up, where he just takes a few steps before getting into his delivery stride. The fast bowler says the fact that he is still able to maintain his pace, he hasn't felt like changing the run-up.
Read Also: "Shastri wanted Bumrah for South Africa tour in 2018," India's bowling coach reveals
But for the outside world, with his upper body taking all the toll it does, his action and that run-up make him vulnerable to injuries.
It is something the Indian team management has always been wary of. Bowling coach Bharat Arun said they've had to carefully manage Bumrah throughout his career so far.
"We knew that Bumrah has an unconventional action. So there will be a lot of strain and effort which he would be putting on his body. So, we have been preparing in such a way so that his body can take the rigours of an unconventional action. Changing his bowling style might not have guaranteed the bowler's performance at his optimum level," said Arun on episode three of 'Inside Out', a show hosted by India women's team coach WV Raman.
"So rather than trying to change him (Bumrah's bowling style), we might as well make him stronger physically in all the different parameters of fitness so that he is able to take the rigours of conventional action."
"If bowlers having unconventional action are being effective, then I wouldn't recommend changing their action," he added.
Bumrah had his first major injury last year, as he went down with a lower back stress fracture in October and could only return to the game in January.
The ace fast bowler didn't look at his best in the limited-overs matches against Sri Lanka, Australia and also on the full tour of New Zealand.