Lewis Hamilton displayed a battle-scar as on Tuesday his $20m personal Reebok endorsement deal was unveiled in Amsterdam.

The McLaren driver was sporting a bump on his lip, apparently sustained in a slight slip whilst kayaking near his home on Switzerland's Lake Geneva at the weekend.

Despite his back-to-back penalties at Montreal and Magny-Cours last month, however, the 23-year-old Briton insisted he is not out of sorts in the run-in to his home grand prix at Silverstone.

"If anything, I've been more in form in the last two races than I ever have before," he said.

Hamilton also rejected suggestions that, notwithstanding the hype surrounding the British grand prix, the venue is actually more a 'Ferrari-circuit' than one on which McLaren might dominate.

"People make those comments and I beg to differ," he said. "I mean for sure, it's a track where Ferrari seems to excel, they have done in the last couple of years, (but) I think our car is good enough there."

Source: GMM