Sauber is to look into the problems that caused Marcus Ericsson and Felipe Nasr to slip down order in the Canadian Grand Prix.

The pair eventually finished 14th and 16th in the 70-lap race, but suffered separate mechanical issues the clearly affected their performance. Ericsson made an early impact by racing wheel-to-wheel with Felipe Massa in the initial stages, but had to park his C34-Ferrari immediately after the chequered flag, while Nasr reported problems all afternoon.

"Marcus and Felipe did their jobs well in the race, and there are other reasons why we were not able to achieve a better result," head of track engineering Giampaolo Dall'Ara confirmed, "Now we have to analyse everything; there is plenty for us to do."

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Ericsson refused to be downhearted after finishing 14th, despite having targeted points form his sixth row start.

"It was not a bad race for me," he noted, "I had some nice fights but, at the same time, I had to defend my position. Overall, the car felt good to drive, but we just didn't have enough pace today. We were not able to fight for points the way we would have hoped for and now we need to look into the data and see what we can do that is better for the next race."

Team-mate Nasr started two places further back, but lost places immediately as his car struggled to keep pace with those around him. With potential frontrunners out of place on the grid, the Brazilian was quickly demoted, compounding his woe.

"It was a difficult race," he acknowledged, "The car was not easy to drive and we seemed to have a couple of issues. At the beginning of the race, I had a loss of power and, besides that, my brakes were overheating, so I had to sacrifice some lap time to recover them. There is a lot of data to analyse and understand."

With two weeks to the Austrian Grand Prix, the team will hope to find the faults, but left Montreal frustrated at not being able to capitalise on a poor weekend for rival Toro Rosso, which also failed to score.

"A disappointing result," team principal Monisha Kaltenborn concluded, "We certainly expected more, but unfortunately it did not work out. We need to analyse why we were not able to keep up with the pace of our main competitors..."