Several niggling injuries have prevented the Black Caps and Sri Lanka from naming their lineups a day out from the second Test at the Basin Reserve.
Doug Bracewell is on standby to replace seamer Tim Southee in the Black Caps' playing squad, after Southee picked up an ankle injury at training.
Captain Brendon McCullum says Bracewell is overdue a chance to be back in the national frame, but has a lot of other seamers to contend with.
He says it's a good problem to have, but he's confident whenever Bracewell gets the ball in hand, he'll be useful.
Meanwhile, Sri Lankan captain Angelo Matthews says veteran spinner Rangana Herath is no certainty to return from a hamstring injury.
He says Herath is fifty-fifty, and will go through a fitness test tomorrow morning.
Both sides are expected to make minimal changes to their playing squads.