Brendon Hartley was hospitalized to pass a series of tests shortly after the frightening win on the first round of the Canadian Grand Prix.
The Toro Rosso driver was in contact with Lance Stroll at the fifth turning corner, where Williams had contact with the driver and hit the barriers with great speed.
It seemed repeatedly that Stroll had a slight faltering, and afterwards he was in contact with the New Zealand driver and was swooping rapidly into the barriers.
Both drivers were taken to the medical center immediately after the accident, and Hartley was hospitalized with a helicopter for further examination.
Two 28-year-old pilates were tested for electrocardiography and the FIA revealed that the results were normal.
Hartley returned to the track with a helicopter on it.
Stroll interpreted the accident as a "race event" when he gave the normal race-end interview after the controls at the medical center.
"I made a good start and earned a few places."
"I was on my side when I entered Brendon's fifth bend, the car came out of control, I fixed it later, but there was not enough room for both of us."
"We regretted that we did not fix it, and we swept the wall."
The referees seemed to agree with Stroll's assessment and did not give any penalty to either.