The only change to the Stags' squad of 13 from round one is the omission of 12th man and Manawatu seamer Navin Patel.
CD coach Heinrich Malan said in a statement the return of Worker and Milne was timely as they attempt to bounce back from a "shock loss" at Pukekura Park.
"We came up against a very good side first up but were disappointed not to have continued our strong recent results against them," Malan said.
"Now it's time for us to show that we are also one of the best sides in the 50-over format in New Zealand."
Tim Southee, returning to the Black Caps' fold for the second test on Saturday, is the only change in the ND squad.
■ CD STAGS: William Young (c), George Worker, Ben Smith, Jesse Ryder, Tom Bruce, Dane Cleaver, Joshua Clarkson, Doug Bracewell, Adam Milne, Ben Wheeler, Bevan Small, Ajaz Patel, Blair Tickner.
■ ND KNIGHTS: Dean Brownlie (c), Brent Arnel, James Baker, Anton Devcich, Brett Hampton, Nick Kelly, Scott Kuggeleijn, Daryl Mitchell, Brett Randell, Tim Seifert, Ish Sodhi, BJ Watling.