London, Aug 4 : Scottish actor Gerard Butler has cast doubt on rumours that his relationship with former `Friends' star Jennifer Aniston was more than professional.

Butler, 39, and Aniston, 40, were pictured getting cosy on the set of their new film, but the actor has admitted that he is still very much single.

"If I was any good at this I would be married, or in a serious relationship," Sky News quoted him as saying.

"But I'm single so I should be taking advice from other people," he added. (ANI)