Paceman Daryl Tuffey has been added to the New Zealand Cricket squad as bowling cover for the Black Caps first Test against Pakistan starting in Hamilton on Friday.
Tuffey replaces Wellington's Andy McKay, who recently sustained a side strain and has not fully recovered.
New Zealand Cricket says McKay needs to get to a point where he can bowl pain free and for sustained periods.
McKay is back bowling and but is not yet at the point where he can be considered for Test selection.
The addition of Tuffey is the only change to the squad announced in December last year.
The Test squad is:
Brent Arnel - Northern Knights
James Franklin - Wellington Firebirds
Martin Guptill - Auckland Aces
Chris Martin - Auckland Aces
Brendon McCullum - Otago Volts
Tim McIntosh - Auckland Aces
Jesse Ryder - Wellington Firebirds
Tim Southee - Northern Knights
Ross Taylor - Central Stags
Daryl Tuffey - Auckland Aces
Daniel Vettori - Northern Knights
Kane Williamson - Northern Knights
Reece Young - Canterbury Wizards
The first match of the two test series starts on Friday at Seddon Park in Hamilton.
A decision on the final playing eleven will be made closer to the start of the match.