Injured Ryder out for up to three months

New Zealand opener Jesse Ryder is expected to be out of action for up to three months after slashing one of his hands during a night out.

New Zealand Cricket released a statement saying Ryder would undergo surgery at Christchurch Hospital on Sunday after cutting his hand on a window at a Christchurch nightclub while celebrating his team's one-day series win over England.

The statement said Ryder has badly damaged his index finger and thumb when he broke a window while trying to gain access to a toilet area that had been accidentally locked.

"Ryder requires a reconstruction to the exterior tendon on his index finger, a flap reconstruction and a skin graft," the statement read.

"It is expected to be six weeks before he can start light training and up to three months before he can resume playing competitively so long as there are no complications."

New Zealand Cricket general manager Lindsay Crocker said Ryder's actions are unacceptable and he would apologise to the bar owner and pay for the damage but would not face any further disciplinary action.

"We recognise the pressure Jesse has been under through his success in the England series and he has suddenly become a high profile international player," Crocker said.

"However, this behaviour is unacceptable and we will have a serious discussion with him to ensure situations like this do not occur in the future."

Ryder, 23, only made his international debut this month after being called into the New Zealand squad for the two Twenty20s and five one-dayers against England but made a big impression.

A big hitting batsmen and useful part-time bowler, he scored 196 runs at an average of 49 in the five one-dayers but the injury has ruined his chances of playing in next month's three Test series against England.

"Jesse had shown increasing maturity during the England series and we had been happy with his behaviour up to this point," Crocker said.

"However in light of this event we shall ensure additional support is provided to Jesse.

"We have team behavioural protocols which are monitored by the group as a whole and this system has served us well for the past four years.

"The incident will be worked through when we next assemble to see whether there is anything which should be improved."