Pedro de la Rosa admitted that qualifying for the Belgian Grand Prix was a 'terrible result' for the Sauber team after both drivers failed to make it past Q1.

Having seen an upturn in fortunes prior to the summer break, and with a solid performance through free practice, the team was optimistic of a strong showing in qualifying only for its drivers to be caught up by the conditions when rain fell.

Both de la Rosa and Kamui Kobayashi gambled on a swap to slick tyres when the circuit started to dry towards the end of the first 20 minutes of qualifying but Kobayashi then went off at turn eight after being caught out by standing water and de la Rosa then followed suit seconds later as he also went off into the barriers.

"I am absolutely disappointed with this result," de la Rosa said. "The car was really good and in terms of performance I'm sure we were in a position to fight for Q3. After the short rain shower it was very difficult to judge the conditions on the different parts of that seven kilometres circuit.

"The track was drying and it was a problem to know what you would find in which corner. We opted for the wrong tyre choice, as it was definitely too optimistic to go for slicks, and I made a mistake when I lost the rear end of the car before turn 14. I overestimated the track conditions there and crashed into the barrier. It is a terrible result."