Emma Watson had no idea Daniel Radcliffe had drink problem

Updated: Jul 13, 2011, 14:32 PM IST

London: ‘Harry Potter’ star Emma Watson has revealed that she had no idea that her co-star Daniel Radcliffe was struggling with an addiction to alcohol.

Radcliffe, 21, had recently shocked his fans when he revealed during an interview with GQ magazine that he had become reliant on drink to help him cope with life in the spotlight.

Watson, 21, was asked about Radcliffe’s admission during an interview on ‘The Late Show With David Letterman’ in New York.

“To be honest, it’s really not something that I genuinely know much about,” the Daily Mail quoted her as saying.

“But as far as I know, he never took a sick day. He was like the most professional, amazing guy ever,” she said.

Radcliffe had made the admission that he’s been teetotal since August, after recognising a problem.