London, Jan 4 (ANI): If sources are to be believed, Rolling Stones bandmates Ronnie Wood and Keith Richards friendship has become strained, courtesy Wood's turbulent personal life.

While Wood, 62, who is battling alcoholism, has been making headlines for his ill-fated romance with 21-year-old Ekaterina Ivanova, Richards, 66, has opted for a healthier life since suffering serious head injuries after falling out of a tree in Fiji in 2006.

"Keith and Ronnie have obviously had some wild times together over the years," the Daily Express quoted source as saying.

"But while Ronnie is still trying to behave like he's in his 20s or 30s, Keith opts for the quieter life these days as he knows he has to take things a little easier.

"He and Ronnie certainly appear to have drifted apart and Keith has no interest in going out on all-night benders with him," the source added.

Frontman Mick Jagger, 66, is known to be concerned for Wood's welfare.

While it's been claimed he is prepared to axe Wood from a forthcoming tour if he's unable to straighten himself out, a spokesman for Jagger told this column he had been "very supportive of -Ronnie over the holidays". (ANI)