The five-time rowing world champion and one of New Zealand's leading Olympic medal hopes Mahe Drysdale has been hit by a car while out training on his bike in Munich.
The chief executive of Rowing New Zealand Simon Peterson says the injury isn't serious but it will rule Drysdale out of this weekend's World Cup regatta in Munich, the final buildup event to the London Games.
The injury's expected to keep Drysdale off the water for four days.
Since last year Drysdale has reduced the amount of on-water training he does because of arthritis in his back and has taken to cycling each day.
Peterson says Drysdale was at a roundabout when one of his wheels was hit by a vehicle knocking him to the ground.
Drysdale was involved in a similar incident ahead of the world champs in Slovenia last year but went on to win the single scull title.