YouTube footage of Wahab Riaz's ferocious battle with Shane Watson in the 2015 World Cup quarter-final in Adelaide can sometimes be hard to stomach.
Especially for a budding batsman.
But it seems Australia better start studying it - the Pakistan left-arm quick has promised more of the same in this week's first Test at the Gabba.
Wahab relentlessly bounced Watson at Adelaide in a fast bowling display then Australian captain Michael Clarke described "as good as I have faced in ODI cricket".
Wahab consistently reached 150kph as he removed Clarke and opener David Warner, only for Watson to steer Australia to victory after being dropped off the Pakistan quick.
"That was one of my best matches I have ever played," Wahab said ahead of his first Test in Australia, the three-match series opener from Thursday.
"I would love to repeat that performance from the World Cup.
"I want to bowl like that on this tour.
"I am going to bowl aggressively, I will bowl short as well - it's part of the plan."
No prizes for guessing what the honest quick's approach will be to Australia's leading batsmen this series - captain Steve Smith and Warner.
"You have to attack them - that's it," Wahab said.
"You cannot look for them to give you their wicket."
Wahab chimes into a Pakistani attack boasting fellow left-arm speedster Mohammad Amir, who has taken 13 wickets in his last four Tests since his return to international cricket following a spot fixing ban.
Then there's champion leg-spinner Yasir Shah, Australia's tormentor in their last Test series at UAE in October 2014.
No wonder Wahab believed they had the firepower to end Australia's 28-year unbeaten Test run in Brisbane.
That's despite Pakistan never having won a Test series on Australian soil.
And they last won a Test in Australia in 1995.
"Records are meant to be broken," Wahab said.
"We know even no Asian country has won a series here in Australia.
"(But) we have to take the challenge.
"To compete with them we have to counter-attack them - we have to have that confidence."
Wahab got a taste of the pink ball he will wield in Brisbane during Pakistan's comfortable tour match win over a Cricket Australia XI in Cairns.
Asked about the ball, a glint appeared in Wahab's eye that Watson is no doubt familiar with.
"It's lively. It's really lively," he smiled.
