Haas losing patience with Grosjean

Romain Grosjean's error-strewn 2018 campaign is starting to test Haas' patience, with team principal Guenther Steiner admitting that he is unwilling to put Grosjean's crashes down purely to poor fortune. Grosjean collided with team-mate Kevin Magnussen at the British Grand Prix before later crashing out of the race.

Grosjean clipped Magnussen on the opening lap at Silverstone before a more terminal collision with Carlos Sainz Jr sent both men spinning through gravel and into the barriers.

The retirement represents a return to form of sorts for Grosjean, who had finally got off the mark for 2018 with an impressive drive to fourth in the Austrian Grand Prix a week previously.

Only Brendon Hartley has failed to see the chequered flag more times than Grosjean this year, with Haas' frustrations magnified by the fact that their car has consistently been the best of the rest behind Mercedes, Ferrari and Red Bull.

"I wouldn't call this bad luck," said Steiner of Grosjean's run. "It's getting frustrating.

VIDEO: Another race, another Grosjean crash

"We all hope for him that we are going up and now we are down in the dumps again and we need to get out again.

"We will get out of it, it's always hard work, but we should put pour hard work into scoring points instead of getting up again.

"We should be up and trying to hit high but at the moment we are using a lot of energy just to get out of the dumps always. Always chasing instead of trying to move ahead.

"I don't know where the tipping point is. I'm not there yet. But at some stage, as I said before, we need to stop losing points. And that is the tipping point.

"We cannot keep on doing this. We are now through half the season and we must have lost a lot of points because of our own mistakes. And this is actually not acceptable."