Sergio Perez will spend a further night in the hospital following his high-speed accident in qualifying for the Monaco Grand Prix.
The Sauber driver was taken to the Hospital Princess Grace after crashing at the exit of the tunnel and then careering side-on into the barriers that separate the run-off from the track at the chicane. Perez was diagnosed with only a bruised thigh and a concussion.
Following a scan, he was kept in hospital where he was said to have had "a good night," according to a statement from the team. The Mexican then underwent another examination on Sunday morning when the decision was taken to keep him under observation for a further 24 hours. Perez, who had qualified 10th on the grid for his first Monaco Grand Prix, will receive another scan on Monday.