David Beckham shares gruesome picture of scarred face - but is it what it seems?

He's famed for his football skills but since his retirement in 2013, David Beckham has been working on various exciting ventures. And on Tuesday, the 41-year-old took to his Instagram page to share a gruesome picture from his best friend Guy Richie's movie set for King Arthur. The snap sees David sporting gruesome scars across his face as he flashes a set of fake rotten teeth. In the caption, he teased: "Rough day at the office @kingarthurmovie @guyritchie."

Rough day at the office @kingarthurmovie @guyritchie

A post shared by David Beckham (@davidbeckham) on

WATCH: David Beckham makes pancakes for the family

It was announced in 2015 that the father-of-four had landed a cameo role in the upcoming Hollywood film, which also stars Charlie Hunnam, Annabelle Wallis, Jude Law and Eric Bana. It's been reported that David has been named in the cast list as Blackleg leader. This is not the first time the sporting ace and the British director have worked together - they teamed up in 2013 when Guy shot an underwear advert starring the footballer. David also had a small cameo as a KGB projectionist in The Man From U.N.C.L.E.

David Beckham has landed a small cameo in Guy Ritchie's King Arthur

STORY: David Beckham comforts Harper in sweet Instagram post

David, who is married to fashion designer Victoria Beckham, previously opened up about his hopes of pursuing a career in acting. "I am very aware that many sportsmen and other celebrities have turned their hand to acting and failed," he told the Times. "I know that it is a tough profession, where you need a huge amount of skill and discipline, and I wouldn’t want to push myself forward too soon, without learning more about it, and doing a lot more practice. But what I have done so far, I have loved. I can deal with most things. I am a well-known person, so I have got used to criticism."