Hamilton - The Blues welcome back All Blacks Ofa Tuungafasi and Matt Duffie into their side to take on neighbours the Chiefs in Hamilton on Saturday.
Kick-off is at 09:35 SA time.
Both missed last week with niggling injuries, although the squad still has 12 players unable to be considered for selection.
Coach Tana Umaga said he is looking for a significant improvement in their team defence and discipline for the repeat game against the Chiefs, after last week’s loss to the Sharks.
“We let ourselves down with our team defence. The boys all realise that and have come in this week with a determined attitude. Last year we were developing into a strong team defensive unit and we must get back to that level.
“We also need to be more disciplined. You can’t give away kickable penalties like we did last week.
“We want to be solid and aggressive in our team defence and in the contact areas and show more patience with the ball. Our aim is to improve our performances every week from here in which is a challenge to the squad individually and collectively as a team.”
Northland’s Josh Goodhue earns a second start while fellow Taniwha Kara Pryor will add speed in the loose in his first start of the season after injury.
Scrumhalf Jonathan Ruru is rewarded with good form for his first start, with George Moala, powerful last week, moving to the wing in place of the injured Melani Nanai, which allows TJ Faiane to start in the midfield with Rieko Ioane.
Duffie is still bracketed on the wing with Jordan Hyland to be decided after Thursday's final training session.
Northland captain Matt Moulds will come off the bench, returning after off-season surgery, as will former NZ Under-20s players Dalton Papalii and Orbyn Leger.
The Blues were edged 21-26 by the Chiefs in their second-round clash earlier in the season.
Teams:
Chiefs
15 Solomon Alaimalo, 14 Toni Pulu, 13 Anton Lienert-Brown, 12 Johnny Faauli, 11 Sean Wainui, 10 Damian McKenzie, 9 Te Toiroa Tahuriorangi, 8 Pita Gus Sowakula, 7 Sam Cane (captain), 6 Lachlan Boshier, 5 Tyler Ardron, 4 Brodie Retallick, 3 Angus Ta’avao, 2 Nathan Harris, 1 Aidan Ross
Substitutes: 16 Liam Polwart, 17 Karl Tu’inukuafe, 18 Jeff Thwaites, 19 Luke Jacobson, 20 Liam Messam, 21 Jonathan Taumateine, 22 Charlie Ngatai, 23 Marty McKenzie
Blues
15 Michael Collins, 14 Matt Duffie/Jordan Hyland, 13 Rieko Ioane, 12 TJ Faiane, 11 George Moala, 10 Stephen Perofeta, 9 Jonathan Ruru, 8 Akira Ioane, 7 Kara Pryor, 6 Jerome Kaino, 5 Josh Goodhue, 4 Patrick Tuipulotu, 3 Ofa Tu'ungafasi, 2 James Parsons (captain), 1 Pauliasi Manu
Substitutes: 16 Matt Moulds, 17 Ross Wright, 18 Mike Tamoaieta, 19 Gerard Cowley-Tuioti, 20 Dalton Papali'i, 21 Sam Nock, 22 Bryn Gatland, 23 Orbyn Leger