Ryan Jones withdraws from the Wales squad for the upcoming Six Nations due to a hamstring injury.
Ryan Jones has pulled out of the Wales squad for the upcoming Six Nations due to a hamstring injury.
The forward suffered the problem on Friday during Ospreys's Heineken Cup defeat to Leinster.
However, it is unclear whether the 32-year-old will return to the Welsh set-up later in the tournament.
Ospreys teammate James King has replaced Jones for the immediate future.
Wales get the defence of their Six Nations titles underway at home to Italy on February 1.