Jones met up with the squad this morning as they began preparations for the forthcoming RBS 6 Nations campaign and has been ruled out with a hamstring injury.
Jones’ regional team-mate James King, who made his debut for Wales last summer in Japan, has been called into the squad.
Two further players have been called to train with the national squad. Newport Gwent Dragons hooker Sam Parry and Scarlets second-row Jake Ball will begin training with the squad from tomorrow.
