Carlos Sainz has been released from hospital following his Russian Grand Prix practice crash, as the team suspects a brake balance issue may have contributed to the incident.
The Spaniard is hoping to be able to pass an FIA medical examination on Sunday morning that will allow him to take part in the Sochi race, with race stewards having given him permission to take part.
But he admits that he will have to see how he feels in the morning prior to deciding what happens.
"My back and my neck are just a bit sore from the accident, but I'm totally ready," he said.
"Hopefully tomorrow I will wake up in a good shape and maybe I can try and race – this is definitely the intention! Obviously we need to be cautious..."
Although the team is still working on finding a definitive answer for what caused the accident, team principal Franz Tost suspects a combination of prime tyres and a change of brake balance may have been to blame.
"Prior to the accident, Carlos had completed a long-run on the option tyre, before changing to the prime to do two further laps," he said.
"On primes the grip level is lower. In addition he had changed the brake shape on the steering wheel, which meant he had more braking rearwards.
"A combination of these two factors might have been the cause of the rears locking, which made the car uncontrollable."