London: Spanish football club Real Madrid's star midfielder Cristiano Ronaldo has revealed his girlfriend, top Russian model Irina Shayk, has a crazy obsession with his 'CR7' boxers and steals them at the slightest opportunity.

Cristiano Ronaldo and Irina Shayk
Cristiano Ronaldo and Irina Shayk 

The former Manchester United forward was answering a question 'What item in your wardrobe does your girlfriend steal?' The Portuguese star replied that it was his 'boxers' that were stolen from his wardrobe by Shayk.

He also admitted his girlfriend's obsession with his boxers was 'funny'. "She steals my boxers all the time. She wasn't in the house and I opened her wardrobe and there were many 'CR7' boxers. It is funny," Ronaldo was quoted as saying by the Daily Mail.

Ronaldo is in a relationship with the model since 2010. In October 2013, the footballer launched his range of underwear.

His model girlfriend, Irina posed alongside him for a photoshoot with the fashion magazine, Vogue.