By Jonathan McEvoy

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If anyone could upstage Formula One's return to the United States amid a potential championship decider with one crass act it was Lewis Hamilton in practice.

He emblazoned his helmet with the initials H.A.M. - short for hard as a m*****f*****.

Tough guy: Lewis Hamilton shows off his helmet

Tough guy: Lewis Hamilton shows off his helmet

We can deduce that was the nudge-nudge meaning because he tweeted the same initials at the Belgian Grand Prix at Spa in August, advising his followers to look up the meaning if they did not know it.

It remains to be seen whether he will be told to remove the offending words ahead of qualifying on Saturday, or Sunday's race.

The timing is embarrassing because the ruling body, the FIA, warned drivers only a few days ago to moderate their language after Kimi Raikennon and Sebestain Vettel both swore in the heat of the moment on the podium in Abu Dhabi.

Hamilton's McLaren team have regularly failed to exercise any form of discipline over their occasionally errant driver. They did not even fine him when he posted secret team telemetry on line, also at Belgium.

That may partly have been because they were trying to woo him into staying with them, but now he has agreed to join Mercedes next year they may take a more hard line approach.

Drivers generally gave high marks for the new $400 million track hosting the first U.S. Grand Prix since 2007.

'It's a great track to drive,' added Hamilton, who won the world championship in 2008.

'Generally, the track is cool all around. The turn one is pretty unique going uphill. It's definitely not easy. I think a lot of people are going to have some troubles this weekend.'

The comments below have not been moderated.

Good grief, that was a big ol waste of electricity. . .

I can't believe someone at DM has been paid to write this article! And I can't believe I read it!

Leave him alone, he's great. Sport needs characters like Lewis.

It stands for Hard As Marshmallow.

How much I wish Hamilton sues your brain-dead tabloid for this article. That would free our souls from all the drivel we read everyday.

Surely it sould be N.W.E.N.Y for No Wins Expected Next Year

I don't suppose it occurred to any of you fools it might just be short for Hamilton ? If it is supposed to mean what you say it does then shouldn't it be H.A.A.M.F ?

Jonathan Mcevoy, are you bored or something? Are you suffering from writers block? What is your agenda with this nonsensical article?

What a truly pathetic article. My God, I can hardly believe such drivel. The Hamilton hating Mail really has scraped the bottom of the barrel on this one! "Crass act"? Swearing? The Mail doesn't talk as condescendingly about Kimi and Vettel for ACTUALLY swearing on the podium, yet spouts rubbish about Lewis putting H.A.M. on his helmet. Do grow up DM!!!!

Or it could be his name HAMilton...

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