Toto Wolff says Nico Rosberg is in a "difficult position" in the title fight, despite holding a 26-point advantage over Lewis Hamilton.
Rosberg could secure the title in Mexico this weekend if he wins the race and Hamilton finishes tenth of lower, but he can also guarantee victory with a minimum of two second-place finishes and a third place at the three remaining races. Although the championship appears to be Rosberg's to lose, team boss Wolff says his driver still faces intense pressure to make sure his advantage is not wiped out by a single retirement.
"He's in a difficult position," Wolff said. "He needs to look at each weekend at a time, which is what he does. But he needs to make sure he does not DNF, which is the most important.
"You could probably see it in Turn 1, whether that plays a role, I don't know I haven't spoken to him [about it] yet."
Meanwhile, Hamilton has to hope Rosberg slips up at some point as three victories at the remaining three races would not be enough to guarantee him the title. Asked which of his drivers had the more difficult job, Wolff said: "I think both -- one needs to make sure he doesn't DNF and the other needs to score and win. If I could choose I would go for Nico, but it's only on pure probability."
Wolff also said he would be "curious" to see how his drivers handle the pressure.
"The pressure is on both in different ways. Nico was very strong in Singapore, Lewis in Malaysia, Nico again in Japan and then Lewis back on top in the USA. It keeps bouncing between the two, so I'm really curious how it's going to go from here."