Olympic BMX silver medallist Sarah Walker has suffered a further injury that has thwarted her return for this weekend's final World Cup Supercross in California.
Walker injured her wrist after crashing in practice at the Chula Vista track near San Diego yesterday and won't be able to race.
"Sarah has damaged her wrist,'' BikeNZ BMX coach Ryan Hollows said. ``While it's not too serious, it will mean she won't be able to race this weekend. She just can't get a break this year at all. She was training strongly and had high hopes of doing very well this weekend.''
Walker's injury woes began when she dislocated her shoulder at the Supercross round in Norway last April, but recovered sufficiently to gain her outstanding Olympic success. However, as there was a high chance of the shoulder dislocating again, Walker had an operation late last year that sidelined her for five months.
In her final competition preparation for the world championships in Auckland, she was taken down in a race in the US in June, where she suffered a minor fracture in her elbow.