Hamilton not worried about Rosberg's reliability

Hamilton has just three races left to catch up to Rosberg, who only has to place P2 in the remaining Grands Prix to secure his first ever World Championship.

After the Brit’s nightmare in Malaysia, where he suffered an engine blow-out from the lead, he has admitted that he can't shake off the nervous feeling he gets whenever he drives his car after that incident.

He has been plagued with reliability issues all season, but nothing as severe as the one he endured in Sepang.

However, the triple World Champion said that he has noticed an improvement since Malaysia and added that his main focus is on himself and not Rosberg.

"So far it has been 100 percent reliable on his side," said the US Grand Prix Champion.

"But often in seasons there can be 100 percent reliability on a car.

"Will that be the case on Nico's? Only time will tell. I can't get fixated on that. I have got to focus on mine, and I am hoping for these last three I will have 100 percent reliability - that would be a real breath of fresh air. I will try and utilise that opportunity with driving like I did (in the US)."

Reminded by reporters of the 2007 season, where Kimi Raikkonen caught up to him on the Championship table and ultimately won the title in final race of the season, Hamilton revealed he doesn’t delve into the past that much.

"I don't try to compare it to other times," he said.

"History has shown lots of ups and downs and changes, and if you look at history there have been times where it is dead certain already, and there have been times where it has flipped.

"So that is exactly why I have got to keep my head down and keep trying to do the job I did last weekend, which I seriously believe I can do.

"I can't control what has happened to this point. It has already been set. All we can do is when I leave this season I know that I did everything with a full heart."