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Mercedes Formula 1 boss Toto Wolff says he could impose team orders to stop Lewis Hamilton and Nico Rosberg from clashing again.

The pair collided on the last lap of the Austrian Grand Prix, with Hamilton winning and Rosberg slipping to fourth.

Jolyon Palmer drives for the Renault F1 team and he says team orders mean little when you are trying to win a championship.

(Image: Jolyon Palmer, credit: Getty Images)