"[Smith] and Luke have both worked incredibly hard to make themselves available and their return this week provides the team with a bit of a boost,'' said Mauger.
"We are aware of the challenges the Blues will bring on Saturday, all the New Zealand conference games bring a high degree of intensity.''
A third All Black - forward Jackson Hemopo - will return at lock to partner Tom Franklin at Forsyth Barr Stadium, while Sio Tomkinson takes the place of Rob Thompson, who is unavailable for family reasons.
Highlanders: Ben Smith, Matt Faddes, Sio Tomkinson, Teihorangi Walden, Tevita Li, Josh Ioane, Kayne Hammington, Elliot Dixon, James Lentjes, Shannon Frizell, Tom Franklin, Jackson Hemopo, Tyrel Lomax, Liam Coltman, Daniel Lienert-Brown.
Reserves: Ash Dixon, Ayden Johnstone, Siate Tokolahi, Josh Dickson, Luke Whitelock, Aaron Smith, Bryn Gatland, Thomas Umaga-Jensen.