New Zealand suffered a blow on the eve of the second Test against Pakistan Thursday when bowling spearhead Trent Boult was ruled out with a knee injury. Matt Henry was expected to be elevated to share the new ball in Hamilton with Tim Southee, although New Zealand delayed naming their side until Friday's toss. New Zealand coach Mike Hesson said Boult had been troubled by "minor discomfort" in his left knee since the recent India tour and irritated it further in the first Test against Pakistan which New Zealand won by eight wickets. "We were optimistic he would be ready for Hamilton, but during training Wednesday he felt further pain and has subsequently been ruled out of the Test," Hesson said. With the Seddon Park wicket expected to produce more swing that Hagley Oval did for the first Test in Christchurch, Doug Bracewell has been added to the New Zealand squad. Pakistan, which has not lost a series to New Zealand for 31 years, has fond memories of its last appearance in Hamilton nearly six years ago. It beat New Zealand by 10 wickets and Asad Shafiq, who scored 83 in his sole innings then, said they need to repeat that "aggressive" approach. "I remember that innings. I played good positive cricket and it really feels good to come back to the same ground," he said Thursday. "It seems a bit bowler-friendly wicket, some grass on it, but ... we're used to playing on these wickets in our domestic cricket. "It's a good challenge for us. We have to play positive and we have to play aggressive on this wicket." Senior New Zealand batsman Ross Taylor, who had innings of six and eight in the January 2011 encounter, confirmed he will undergo surgery next Wednesday, immediately after the Test, to remove a growth in his left eye.