When the Wallabies fell to Scotland 9-6 at Newcastle in 2012 in atrocious conditions, one of the biggest smiles was from the Australian who masterminded the win, Scott Johnson. 
The image of Johnson smiling "like a Cheshire cat" is unforgettable for Wallabies legend Simon Poidevin, who was with him after fulltime. "He revelled in outsmarting the Wallabies that night," Poidevin said. "It was in extreme conditions, but he had intimate knowledge of Australian rugby and the players."
Johnson's use of his rugby smarts was not new to rugby pundits. Poidevin has not forgotten Johnson's influence for Wales in the 2003 World Cup in Australia in their final pool game against the All Blacks at Homebush.
Johnson was on the Welsh coaching staff and, recalls Poidevin - who was commentating for television - took the Red Dragons on a "guided mission" as he ran water in breaks of play. Wales led until the 61st minute and were only nine points down (46-37) at the 75th minute when the Kiwis scored a converted try to win 53-37.
"The Welsh had them on the ropes and the guy running the water was Scott Johnson," says Poidevin, who is forever wary of any team that includes Johnson on the coaching line-up. Johnson is now Kiwi head coach Vern Cotter's assistant for Scotland. Hence, the concern about his threat in the World Cup quarter-final at Twickenham on Monday (2am AEDT).
Moore than a number
Matt Giteau and Stephen Moore play their 100th Tests this weekend when they run out against Scotland. They join six other Australians to have reached the mark, but who will go into the record book as the seventh and eighth centurions? Giteau made his Test debut first, in 2002, while Moore first ran out for the Wallabies in 2005. But Moore has played more Tests recently.
As for age, Giteau is 33 and Moore 32. But as captain, Moore will run out on to the field first. So does that decide it? No. Apparently, it goes by jersey number, so because Moore is the No.2 and Giteau is No.12, Moore will be the seventh centurion and Giteau the eighth.
What's doing Wallabies
On Saturday it is back to Twickenham for another AC/DC-charged captain's run before their quarter-final against Scotland on Monday.
Making news
"Ireland's conservative game plan will not be enough against the best teams," - Former Waratahs coach Matt Williams on
irishtimes.com.
They said it
"We're at the time in the tournament where the big boys have to step up to the plate," All Blacks coach Steve Hansen in theguardian.com
What to watch
Sunday: South Africa v Wales (2am AEDT), New Zealand v France (6am AEDT), Ireland v Argentina (11pm AEDT)
Monday: Australia v Scotland (2am AEDT)