Felipe Massa is anticipating a tough challenge in today's Monaco Grand Prix as the Brazilian attempts to score points from a lowly grid slot.
Massa was unable to take part in Q2 after being involved in a collision with Marcus Ericsson in Q1, for which the Swede was penalised.
"We are in Monaco, many things can happen but it’s not great to start from the back anyway," Massa said.
"Definitely I want a good start and we need to try different things than the other cars, to see if it works. We are in 16th, it’s not so much to lose I would say. Maybe you can try one stop, maybe most of the cars are going to do two stops. But we don’t know if we can do that.
"The car is less competitive on this track than on the others. It is definitely not really a perfect track for us but honestly looking how I started, how it was in Q1, would have been possible to be fighting for Q3 I think.
"Definitely the car is not as competitive as it was in Barcelona. Monaco is a high downforce track so in my opinion is something related to that. I feel a lack of grip and the tyres are a little bit too hard as well and not working great, for our car at least."
Massa is hoping that Williams's form this weekend is a one-off.
"I’m pretty much sure that we are going to be back to the normal performance in Canada," he added.