Klien stands in for injured Button

(GMM) Team test driver and former Red Bull and Jaguar racer Christian Klien on Friday stood in for the injured Jenson Button in afternoon practice for the British grand prix.

A Honda spokeswoman at the Silverstone circuit insisted that Button is merely suffering from a muscle twinge and should be back in action on Saturday.

Briton Button, who has always carried a back injury that dates back to his karting days, sat out scheduled testing at the Jerez circuit late last month with back pain.

The same Honda spokeswoman said the injury is probably related to the slight back complaint aggravated during his first corner incident at Indianapolis.