Will Stevens says Manor Marussia must be ready to take advantage of any potential opportunity during the Canadian Grand Prix.
Formula 1 races in Montreal have occasionally produced unexpected results and Stevens, who will start the race from 18th position, is wary of such an occurrence.
"It wasn’t a bad qualifying for me," he said. "Perhaps I’m a little less comfortable with the balance of the car this weekend, compared with previous races.
"I’ve tried to focus on race pace a little more however, so I think we have the car in a good place for tomorrow. We’ll gain a place on the grid after the penalties have been applied, but then we’re also in interesting company with Jenson [Button] and Max [Verstappen] starting behind us.
"This is a race where we often see the safety car, so we’ll do our best to make sure we’re in the mix for any opportunities that might arise."
Team-mate Roberto Merhi will start one position higher in 17th place.
"I’m very happy with my qualifying today," said the Spaniard. "It’s a good step forward for me. I’m really enjoying this circuit and we have made some good progress with the set-up of the car this past few races and I feel very comfortable to push a little more."