Cristiano Ronaldo stars in 'Facial Fitness PAO' ad campaign

Cristiano Ronaldo has starred in the 'Facial Fitness PAO' advertising campaign.

The Real Madrid footballer is seen promoting a device which you put in your mouth while nodding your head for a face and neck workout to strengthen the muscles, in the Japanese advertisement, Metro.co.uk reported.

The 29-year-old Portuguese star was recently named the world's fittest man by Men's Health magazine and has also launched his own brand of designer underwear.