New Delhi, Feb. 14 -- New Zealand has been forced to change its Champions Trophy squad after Ben Sears's hamstring injury prevented it from participating in the tournament.

New Zealand opted for a like-for-like replacement by bringing in right-arm seamer Jacob Duffy to the 15-player squad before playing the tournament opener against Pakistan on Wednesday.

New Zealand Cricket confirmed that Sears felt pain in his left hamstring at the team's first training in Karachi on Wednesday. He went for a scan, which revealed a minor tear that would require at least two weeks of rehabilitation.

The rehabilitation timeframe meant that Sears would likely recover in time for New Zealand's final Group A match against India in Dubai on March 2.

"We're...