From recovery mode to holiday mode to being brought into the All Blacks camp and potentially starting against the French on Saturday – it's been an ever-changing three weeks for Sonny Bill Williams who is backing his proven ability to deliver on the big stage in Dunedin should he get the chance.
Williams' physical attributes are the most obviously striking but the midfielder's mental strength cannot be underestimated, either.
It is a quality which has helped him through an often tumultuous league and rugby career and it is what has got him to this point this week after a surprisingly quick recuperation from knee surgery.
It was the 32-year-old who brought up his performance last time out here in the deep south when he dropped three passes in the opening few minutes against Australia in that dramatic Bledisloe Cup test last August, won in the final few minutes by the All Blacks, but the father of two girls has become very good at putting things in perspective and leaving the negatives behind.
If he does start in the No12 jersey only four weeks after an operation on his right knee, Williams will no doubt find the pace and intensity under the roof extremely challenging, but provided he sticks to what he's good at – running hard and straight and defending with power and intelligence – the All Blacks are likely to be in excellent hands.