There was once a time when All Blacks star midfielder Sonny Bill Williams would sulk over being injured.
However, Steve Hansen has revealed the 33-year-old has matured through his career and that is no longer the case.
Williams has been sidelined by injuries a number of times this year, the latest being a niggly shoulder injury, but will make his comeback this weekend when the All Blacks meet Argentina in Buenos Aries.
"Once upon a time he would have sulked a lot about being injured and not getting games, but he has matured into a really good human being," said Hansen.
"He understands there is no point being down about it, so he is pretty positive. He is a positive person around the environment whilst he is injured, he just gets on with his trainings.
"He is fit, probably as fit as I have seen him — running fit I am talking about."
Williams will be looking to help lead the side past the Pumas have who beaten South Africa and Australia in the most recent outings. The All Blacks go into the match looking to bounce back from a slim loss to South Africa in their last match.
The All Blacks take on Argentina on Sunday.