YOUNG GUN: Aaron Cruden playing for the Manawatu Turbos against Waikato in August, 2008.

Playing for Manawatu in 2009.

Still at a playing weight of about 81kgs during an ITM Cup match against Tasman in 2010.

Cruden works out in the All Blacks training room at Rugby League Park in Wellington, January, 2011.

A fresh-faced Cruden in the All Blacks vs Wallabies RWC semi-final.

An injured Cruden is dwarfed by team mates after the Rugby World Cup final at Eden Park.

A visibly bulkier Cruden slips away from the clutches of the Crusaders' Sam Whitelock during their 2012 Super Rugby semi-final clash.

A buff-looking Cruden and Sonny Bill Williams in the dressing sheds after the Super Rugby final.

Cruden is closing in on his target weight of 85kgs. Pictured at Chiefs training this week, sitting at 83kgs.

Cruden started off the bench in the Chiefs' pres-season game against the Highlanders in Taupo in February.