Los Angeles, Apr 7 (IANS): Rolling Stones' drummer Charlie Watts admits the death of his former bandmate Brian Jones in 1969 wasn't a shock, although it was certainly very sad.

The musician died after he drowned in his swimming pool.

"Shock? Jones dying? No. It was very sad, but it wasn't unexpected. We'd carried him for a few tours and he was quite ill," femalefirst.co.uk quoted Watts as saying.

Watts insists he still doesn't know what was wrong with Jones, who drank heavily and got into drugs earlier than the rest of the band members.

"We were young, we didn't know what was wrong with him. I still don't really know," he said.

"He always suffered from terrible asthma, and he drank heavily on the road and he got into drugs before anyone else in the band," he added.

Although the music legends were recently announced as Glastonbury Festival headliners this summer, the 71-year-old rocker admits he still has doubts about their longevity.

"Misgivings? Yeah, oh yeah, I always do. it's a young person's game," added Watts.