The Blackcaps international will slot in for Pakistan seamer Wahab Riaz as the county's overseas player for the matches against Leicestershire Foxes and Durham Jets, and will be available for the quarter-finals in the event that Derbyshire qualify
Derbyshire Falcons have signed Henry Nicholls for the final two group games of the T20 Blast.
The New Zealand international will replace Pakistan seamer Wahab Riaz as the county's overseas player for the matches against Leicestershire Foxes and Durham Jets, and will be available for the quarter-finals in the event that Derbyshire qualify.
Nicholls, who has played four T20 internationals for the Blackcaps, has a career strike rate of 126.08 in the format, with eight half-centuries.
"With qualification potentially going down to the final game, it was important that we secured an overseas replacement for Wahab," Falcons captain Gary Wilson said.
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"While Henry is not a like-for-like, he provides us with a powerful batting option and international experience. This could be key as we try and close out some high-pressure games.
"He has an impressive white-ball record and we look forward to welcoming him to Derbyshire."
Nicholls said: "It’s an important week for the club as they attempt to lock down a quarter-final place.
"Wahab has done an unbelievable job as overseas, and I’m excited to now be joining Derbyshire and fellow Black Cap Lockie Ferguson as we look to get over the line in the final two games."