Allrounder Mitchell Santner has replaced Jimmy Neesham in New Zealand's 15-man squad for the second and final Test against Pakistan, while the status of Ross Taylor for the game starting November 25 in Hamilton is still yet to be confirmed.
A decision on Taylor will be taken after he consults a specialist about a growth in his left eye, which New Zealand coach Mike Hesson felt may be affecting his batting and catching. Dean Brownlie, the Northern Districts' batsman, will join the squad as cover for Taylor.
Santner, one of New Zealand's biggest positives during their 3-0 defeat in the Tests in India, has made a recovery from a wrist fracture he suffered three weeks ago.
"It's obviously pleasing to have Mitchell back with the team ahead of the second Test," national selector Gavin Larsen said. "With him and Todd (Astle) in the team, it gives us the opportunity to play two spinners if required. Mitchell brings all-round ability and is coming off a strong tour of India.
"We're still waiting on a little more information on Ross before we make any decision on his availability for the second Test. Dean will come in as cover, but we should know more in the next couple of days."
Neesham, who was left out of the first Test in favour of Colin de Grandhomme, will join Otago ahead of the next round of Plunkett Shield matches.
New Zealand took a 1-0 lead in the series against Pakistan by winning the first Test in Christchurch by eight wickets.
Updated squad: Kane Williamson (capt), Todd Astle, Trent Boult, Colin de Grandhomme, Matt Henry, Tom Latham, Henry Nicholls, Mitchell Santner, Jeet Raval, Tim Southee, Ross Taylor, Neil Wagner, BJ Watling, Dean Brownlie