Button the lip, Hamilton warned

LEWIS HAMILTON must not become embroiled in a war of words with his Formula One title rivals if he is to be crowned world champion, according to leading psychologists.

Pressure has been piled on to the 22-year-old Briton after he crashed out of last weekend’s Chinese Grand Prix and lost his chance to close out the driver’ title race.

The McLaren rookie now has just a four-point lead to take to Interlagos in Brazil for the final race of the season on October 21.