Red Bull driver Mark Webber has hit out at Caterham racer Giedo van der Garde by labelling him a "pay driver with no mirrors".
The Australian Formula 1 ace was referring to an incident during the Canadian Grand Prix where the pair collided as Webber tried to overtake the Dutchman.
"We had a lot of blue flags as we approached the hairpin," F1 Today quotes Webber as saying. "Some guys maybe have too much concentration on [just] driving the cars."
Van der Garde was later penalised five grid places for Silverstone.