Toto Wolff says Lewis Hamilton hasn't shown "a moment" of weakness throughout 2017, something he believes is due to how the Englishman reacted to losing last year's championship to Nico Rosberg.
Hamilton stands on the cusp of a fourth world championship after scoring four wins in the five races since the end of the summer break. His lead - which stands at 59 points -- has been bolstered by misfortune for Sebastian Vettel at the last three races and is large enough that he could wrap up the championship at the U.S. Grand Prix on October 22.
Mercedes boss Wolff is impressed with how Hamilton has approached this campaign, which has seen Mercedes' dominance challenged by a resurgent Ferrari.