David Beckham In Potency Pill Advert

However, a source close to the star said: `David`s fair game and can take a bit of mocking in the name of comedy.`

David Beckham is advertising impotence pills in China.

Old interview footage of the soccer ace - who has three sons with wife Victoria - has been dubbed over to promote USA Selikon, a Viagra-like medication.

In the clip, the dubbed voice says: "Want to know how I can keep being strong and running on the football field? USA Selikon capsules help me a lot. It's also the secret weapon with which I can satisfy Victoria."

David is said to be furious over the advert, but his representative has declined to say whether he will be taking any action to stop the commercials.

However, a source close to the star said: "David's fair game and can take a bit of mocking in the name of comedy. 

"But to poke fun at his sexual prowess to plug a product is overstepping the mark."

Actors Sir Sean Connery and Keanu Reeves are also being used to promote the sex drug.

Old footage of 78-year-old Sean - whose wife is called Micheline - from his movie 'Indiana Jones and the Last Crusade', includes a dubbed voice saying: "I turned 70 this year. But with the help of USA Selikon capsules, I was  praised by Barbara that I'm still the James Bond, forever 25.

"I have told all my aged friends 'You should try USA Selikon capsules.'" In interview clips of Keanu, a voice says: "The feelings after my kidneys got washed by USA Selikon capsules are surprising. And my girlfriends were also surprised."

David's image has previously been used to promote a brand of condoms in China.

Chinese law makes it difficult for celebrities to take legal action against companies that use their likeness without consent.

A spokesperson for the product has confirmed the commercial was approved by government authorities.