Wehrlein hits out at Button's "silly" move

The duo collided at Portier near the end of the race when Button dove down the inside of Wehrlein, touching his right rear wheel and sending him into the wall.

Wehrlein's car flipped onto its side and ended up against the barriers. The safety car had to be deployed as a result.

The Sauber driver had no doubt that his McLaren rival was to blame for the crash.

"He was nowhere, clearly this corner is no place to overtake. It was a silly move," Wehrlein said.

Wehrlein's helmet made contact with the barrier and the German said he will need to have a scan next week to make sure everything is fine following the back injury that led to him missing the first two races of the season.

"I touched again the head on the barrier, so I will have to do another scan next week for my back, so let's see," he said.

"I could jump out myself, so it seems to be OK. Obviously with the injury I had, I'm not too sure."

He added: "I remember everything [of the crash], it was just scary. The brakes started to smoke, I couldn't get out of the car, but the only thing I wanted to do was get out of the car when you see the car starting to smoke."

Button said he realised too late than Wehrlein had not seen him.

"Obviously I thought it was on because [otherwise] I wouldn't have made the move," he said. "I got alongside him, then I looked across and was like, 'he hasn't seen me at all'.

"These cars are so difficult to see out the back of, I've been telling the team and the FIA that this weekend. I tried to back out of it, but it was too late and we touched."

The Briton, in his one-off return to F1 as Fernando Alonso's stand-in, admitted it was "horrible" to see Wehrlein's car stuck against the wall.

"I've never seen a car go up on its side before, I don't know if that's the way the tyre is or just unlucky, I don't know. Horrible to see, I wanted to get out the way as soon as possible because the leaders were coming round.

"I asked as soon as I stopped the car and they said he got out on his own, which is good. I saw him earlier, he obviously wasn't happy but he seemed OK anyway."