BARCELONA, Spain -- Williams is unsure it will be able to run on the final day of the opening 2017 winter test after Lance Stroll crashed into the barriers on Wednesday.

Stroll hit the barriers at Turn 5 late on Wednesday afternoon after losing control of his car, damaging his left front suspension and front wing. It is the second time in two days his test has ended with a spin after damaging his Williams on Tuesday, leaving the team low on parts.

Williams' Rob Smedley was unsure on Wednesday night whether the fourth and final day of week one can be salvaged.

"We are still assessing all of the damage, there was a bit of damage to the left hand side of the car -- and we are having a look at it," he said. "I cannot make a full judgement call on it, as to how much has been damaged and what the contingency will be from this point onwards until we have a little bit of time and think about it.

"There is a question mark but we will be doing our utmost to get out. IT is a really important day for testing, today we had a good day learning about the car - and obviously we are desperate to continue that for tomorrow onwards so our aim is to get the car out."

Despite the possible ramifications of his crash, Smedley says it would be unfair to single out Stroll -- who completed 98 laps before the incident -- for blame, suggesting Pirelli's new tyres are more to blame for both his costly spins.

"He shouldn't feel he has let them [his mechanics] down, otherwise we are living in some kind of terrible blame culture and we don't want that. Everybody... I wouldn't even call it a mistake that Lance made today. He was going for an upshift, he was on cold tyres, Felipe [Massa] once or twice on day one made almost exactly the same mistake - and that is a guy with 15 years experience, it is for us to understand how to rebalance the car, how to get the tyre working, even in tricky situations on those cold laps to help the drivers in those situations.

"Nobody stands back and says that is your bit and you are to blame for it - absolutely not. There is no blame to apportion here at all, the main focus as usual is how did it happen, how do we stop it happening again and how do we contain the actions going forward."

Stroll himself appeared relaxed about the situation when he spoke to the media, saying the spin was out of his control.

"It was a really good day -- 100 laps, getting used to the car, good long runs, good short runs. Unfortunately just a little thing at the end, a victim of a situation that happened on the end on the car, which just threw the car away from me. It happened -- still trying to figure out exactly what it was.

"I'm going to be approaching next week even better than this week. I have time in the car now, at least, all the questions I've been asking myself and wonders how it's going to feel -- I actually got to break the ice today."

When asked whether the crash increases the pressure on him after his shunt on his debut in the car, the teenager simply said: "Pressure? Nah, I don't feel pressure..."

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