Mercedes boss Toto Wolff says he has no concerns about Lewis Hamilton's future with the team and expects him to stay on.

Wolff not worried by Hamilton

Wolff not worried by Hamilton

The Brit recently captured his fourth Drivers' Championship and said he would not be thinking about Formula 1 until he had finished celebrating his success.

Hamilton spent much of last season weighing up his future in motorsport due to his eagerness to explore other ventures and his current Mercedes contract is set to expire at the end of 2018.

Having suddenly lost one world champion in 2016 when Nico Rosberg announced his shock retirement, Wolff has insisted he has no concerns about Hamilton doing something similar, indicating he expects him to sign a new contract and continue to drive for the Silver Arrows.

"I don't think it's going to happen, but you never know," he told Austrian broadcaster ORF.

"We didn't expect anything like that in 2016, but then came the call from Nico."

Wolff added: "Right know he's in Los Angeles, which is always dangerous terrain because of all his other activities. But I expect him to be in the car next year.

"We're happy with him and he's happy with us."