LONDON (AP) Formula One champion Jenson Button admits he took a pay cut to join last year's winner Lewis Hamilton at McLaren, but adds he left Brawn for a new challenge.

A day after the move was revealed, Button said on Thursday it would be strange being a rival to Brawn after seven years with the team.

"I am actually earning less than I would have been at Brawn so it's not about the money and everybody involved knows that is not the case. It's because it's something new," Button told BBC Radio.

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