Bradley Cooper denies secretly marrying Suki Waterhouse

London: Superstar Bradley Cooper insists he is not married to British model Suki Waterhouse, despite being seen wearing a wedding ring.

The 39-year-old actor said that it was his father`s ring and he was not married.

"You know when they take a picture and it becomes a negative image? That was my father`s ring. I am not married," he said.

The couple have been together for 18 months.

Cooper also revealed that he spent three hours a day in the gym for his role as Chris Kyle in `American Sniper`, the story of a marine who killed over 150 terrorists.

"I bulked up and gained 40lb ? I ate 5,000 calories a day. It was brutal," he added.

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