Irishman Peter Lawrie has blamed a dramatic drop in form on his recovery from a fizzy drink addiction.
Lawrie stopped drinking several litres of cola a day in 2013, but his ranking fell from just outside the top 100 to 896 at the end of last year.
He told Newstalk: "I lost all confidence in myself. I wouldn't say I went through a breakdown but I definitely got exceptionally emotional. It was very difficult to deal with all of the situations coming at me.
"Whether that had anything to do with my mental state in any shape or form, I have no idea. I drink two or three cans a day [now] but I was drinking litres of the stuff. Even in the hottest country, like Malaysia, I'd have a Coke on the golf course because I was addicted to it."
Lawrie has won one European Tour event in his career.
