How Australia's monstrous pack became an explosive set-piece force to strike fear into England, including a 21st 'rhino', the Scrum Doctor and the kings of winning penalties

England's ability to solve their recurring scrum problems will depend on the box-office showdown between two rival ‘rhinos’ when Australia bring a powered-up pack to Twickenham on Saturday. Steve Borthwick and his England side must find a way to get the batter of Australia's explosive pack when the two teams meet at Twickenham for a box office showpiece on Saturday England suffered a heartbreaking 24-22 defeat against the All Blacks at Twickenham last week Borthwick admitted that England need to improve in the scrum ahead of facing the Wallabies ‘First and foremost, we've got to reflect on the scrum performance as a whole. Tighthead prop Taniela Tupou weighs a huge 21st 3lb and is a major threat to Borthwick’s pack Despite now being known as ‘Tongan Thor’, Tupou was previously nicknamed ‘Runaway Rhino’ An intriguing match-up at Twickenham will be the two 'rhinos' having a crack at each other ‘With Fin Baxter, we’ve played a tiny bit in New Zealand but you have to work on the combinations. Jamie George described team-mate Genge as 'world-class' and backed him to outdo his opposite number Tupou on Saturday Australia are gearing up for Saturday's showpiece, training at The Lensbury in Teddington At the beginning of Dan Cole’s long international career, England would bully a feeble Australian scrum as a matter of course - but now that advantage is ancient history Under Du Plessis’s expert guidance, Australia became a set-piece force and they have continued to improve of late, armed with the wisdom of long-time All Black ‘Scrum Doctor’ Mike Cron.