Hamilton should take some blame for Vettel bust-up, says Jackie Stewart

Hamilton denied braking suddenly and labelled his rival a "disgrace".

Jackie Stewart believes Lewis Hamilton must take some of the blame for an on-track bust-up with title rival Sebastian Vettel during Sunday's Azerbaijan Grand Prix.

Vettel hit the back of Hamilton's Mercedes as the pair weaved behind the safety car, with the German claiming he had been brake-tested by the three-time world champion.