Australia's Jimmy Peirson was dismissed between the fourth and fifth deliveries of the 11th over of the chase in the World Cup quarterfinal against Bangladesh. He was 'Mankaded' by the bowler Soumya Sarkar: run out after backing up too far before the bowler had entered delivery stride. The Mankad, and one without at least one warning, is perhaps not in the Spirit of Cricket, which is a vast expanse of grey, but it is certainly in the rules of the game, which are more black and white.

Defending 171 in a high-stakes game such as a quarter-final, Bangladesh were within their rights to punish Peirson for trying to take an advantage he shouldn't be taking. These Under-19 cricketers are on the cusp of their careers in professional sport, where no inches are given, and Australia's captain William Bosisto, who was in the middle when the dismissal occurred, said a lesson had been learned from the experience.

"We certainly won't be getting out like that again," Bosisto said, after steering Australia to a five-wicket victory with his fourth unbeaten knock in as many innings. "It was obviously disappointing from our perspective but that's within the laws of the game and I think our boys will learn a lesson from that."

Peirson had been given no warning by Sarkar before the bails were whipped off, according to Bosisto, who then spoke to the Bangladesh captain Anamul Haque to try and resolve the situation in Australia's favour. Even after the umpires spoke to him, Anamul did not withdraw the appeal and Peirson had to go, leaving Australia on 33 for 4.

Stuart Law, Australia's coach, did not see the Mankad live, and there are no television facilities at Endeavour Park since the matches from the venue are not being broadcast. He said the lesson learned was a valuable one. "It is in the laws of cricket. If you are out of your crease and they decide to uphold the appeal, it is out," Law said. "You don't have to give the warning. The guys now realise that they can't leave their crease before the ball is bowled."

In the aftermath of the Peirson dismissal, the game heated up, with the Australian supporters who'd come to watch voicing their disapproval. Travis Head joined Bosisto with Australia needing 139 and they went on to have a 67-run partnership for the fifth wicket.

"To go out there, there was a bit of emotion, which is good," Head said. "A few of the boys were getting stuck into each other. It was good, hard cricket and it was good to go out on that stage and try and prove my skills I guess. In my own head, I probably went out there and wanted to obviously do it for my team. It gave me a little bit more emotion and ticker I guess, to stay in."

Head made 44 off 49 balls, his pace of scoring reducing pressure, while Bosisto continued accumulating. He ensured the Peirson run-out did not cost Australia the match, and set up a semi-final clash against South Africa on Tuesday.