Ted Kravitz was surprised with a naked photo of Valtteri Bottas during his live Sky Sports show after the Las Vegas Grand Prix.

As is usually the case, Kravitz hosted his half-hour review show following the conclusion of the on-track Formula 1 action in Las Vegas. And, like the racing itself, the broadcast is live as the veteran pit lane reporter runs through what happened in the race while ambling through the pit lane.

So there was no time for Sky Sports to censor a naked photo of F1 racer Bottas when one fan approached Kravitz during the show. The pundit had referred to the images a day earlier, prompting the fan to come and show a huge example of one.

The image in question shows the Alfa Romeo driver in a field with his back to the camera, wearing a hat and sunglasses and nothing else, so his bare bottom is on full show. It is one of several images from a new calendar on sale which has been launched to raise money for charity.

"Oh my gosh!" said Kravitz as the fan approached him with the huge frame. The fan then excitedly told him that Bottas had just signed it for him, before the broadcaster explained to viewers the context behind the image.

He said: "So this is one of the naughty pictures that I refused to show you on the Notebook yesterday, but very well-timed and I did not set this up. This gentleman has come and shown the www.bottass.com, a cancer charity calendar for Movember, with 12 shots of Valtteri Bottas complete nude.

"And that's the one with him riding the little hobby horse. Do you see what I mean why it was so naughty I couldn't show you yesterday?"

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Bottas previously went viral for posting an image of himself swimming in a river with his backside on show. So he decided to take advantage of it by posing for more snaps and flogging them to raise cash for a good cause.

Each calendar has 13 nude pictures of the F1 driver and is on sale for £18 and, from each calendar sold, £4 will be donated to prostate cancer research. Preview images on the website shows pixelated photos, but those who buy the calendar will get to see the Finn bare all.

Bottas started the Las Vegas race seventh but had a bum day at the office. He collided with Fernando Alonso and Sergio Perez at the first corner of the race and eventually was only able to finish 17th, miles away from the points positions.