Lewis Hamilton will be unbeatable in this year's title race as long as his "head is in the right place", according to his former team-mate Jenson Button.
Hamilton, who has won five of this year's nine grands prix, trails his team-mate Nico Rosberg by four points in the standings in what has become a two-driver race for the title.
There are some who worry that Hamilton could inadvertantly cost himself the title as at times the 2008 World Champion has shown signs of cracking.
Button, however, reckons if Hamilton can stay in the right frame of mind, he will be unstoppable.
He told the TalkSPORT's Weekend Sports Breakfast: "People say Lewis Hamilton is quicker but Nico Rosberg...
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