Button says Red Bull title rivals must sprout wings

JENSON BUTTON believes Formula One fans want to see a challenge to the current dominance of Red Bull and Sebastian Vettel.

Button knows exactly what it means to reign supreme in F1, doing so at the start of 2009 when he won six seven of the first seven races and claiming four pole positions during that period en route to the world title.

At present, it is Vettel who is the master, with five wins and five poles from the last six grands prix stretching back to the end of last season when his late charge brought him the championship.