Rosberg takes a 22 point lead over Hamilton into the Singapore Grand Prix this weekend, the 14th round in the championship, but it is the Briton who arguably has the momentum after winning last time out in Italy.

The relationship between Rosberg and Hamilton has been severely tested this year and the collision at Spa recently saw it plummet to new lows.

"It has changed from, let us say, an almost amicable relationship at the beginning of the season to a very intense moment [in Belgium], where it was almost like realising these two are enemies competing for the world title," Wolff told BBC Sport.

"It is also a learning process [for them]," Wolff continued. "These boys have been calibrated their whole life that their main priority is to win the drivers' championship in F1.

"And here they go - they are in the same car, competing against each other for that trophy and one is going to win and one is going to fail.

"This is a new experience for them - a difficult experience maybe."