Mercedes boss Toto Wolff has admitted Lewis Hamilton's sensitivities leave him vulnerable.

Formula One's most decorated driver heads into Sunday's Monaco Grand Prix looking to extend his 14-point lead over Max Verstappen as he bids for an unprecedented eighth world title.

But the 36-year-old recently revealed on social media that he struggles with his mental health.

Wolff, 49, could lead Mercedes to an eighth drivers' and constructors' double this season following the most dominant period F1 has ever seen. But the Silver Arrows face the biggest threat to their supremacy, yet with Verstappen and Red Bull ready to strike.

"Looking back at the seven titles, it still seems surreal," concluded Wolff. "It would have been so far out of reach when I started this project that it would have been over-confident and mad to think it could happen.

"I love the pressure-cooker and sport gives you so much back when you meet your own expectations but losing is still as painful as it was in the past.

"This year has been different because of how the season started and we were the hunters and that was a new situation. But I was looking into people's eyes and I could see the joy and the excitement of going hunting.

"The mentality of this team is to say that when we close the chapter and finish the journey we can look back and ask, 'What did we achieve?' But that moment hasn't come yet."