Honda’s Jenson Button sat out testing at the Jerez circuit on Wednesday due to back pain.
The British driver, who had been looking forward to trying crucial updates for Honda’s uncompetitive RA107 car this week, was scheduled to drive “but arrived in Jerez not fully recovered from a slight back complaint believed to have been caused during his first corner incident during the race at Indianapolis on Sunday”, the Japanese squad confirmed.
Test driver Christian Klien replaced him, with Button scheduled to return to action on Thursday.