Labour MP Trevor Mallard broke bones in a bike crash during Cycling Otago's third annual R&R sport tour on Saturday.
Mr Mallard, MP for Hutt South,broke his right femur and right shoulder blade on the Taieri Plains when he crashed into two fellow competitors near Henley, The Dominion Post reported.
"We were going over 40kmh at the time and three of us went down.
"The other two were fine," he said.
The accident happened on the first of five stages in a two-day event.
Mr Mallard was operated on in Dunedin Hospital on Saturday afternoon with a plate and screws inserted below the hip to knit his broken femur together.
He said he was waiting for his surgeon's advice before flying back to Wellington.
NZPA