Klien: Weekend was just not on my side.

Red Bull Racing's Christian Klien has branded his early exit from the French Grand Prix Sunday a 'massive disappointment'.

The Austrian, who went out on only the second lap, suffered a loss of fuel pressure in his RB1, something that meant he had to pull off the track in Turn 4 and retire from the event. The fact he had also crashed during practice and then qualified a lowly 16th, meant it was a truly miserable weekend.

"It's a massive disappointment," he said. "I had a fuel pressure problem in the first lap and there was nothing to do, but pull over.

"The whole weekend was not on my side; I had a crash and then qualified sixteenth. I thought it might be hard to get near to the front runners from that far back on the grid, but I didn't expect something like this on the first lap."

Red Bull boss, Christian Horner meanwhile was at a loss to explain what had happened, although Cosworth's David Prigg promised that it would be investigated prior to this weekend's event at Silverstone.

"Christian had a fuel system problem at the start of the race, which will be fully investigated before the next event at Silverstone," he confirmed.