The 30-year-old No.8 missed Wales’ narrow defeat to South Africa and victory over Samoa after suffering a calf muscle injury in their opening warm-up match against England nearly seven weeks ago.

Warren Gatland’s men were hit by injuries to James Hook and flanker Dan Lydiate in the victory over Samoa but could call on Jones after he returned to full training.

And assistant coach Rob Howley, who captained Wales on 22 occasions, expects the Ospreys back-rower to be given the green light to make his bow against World Cup minnows Namibia.

“It looks as if Ryan hascome through the session well,” said Howley.

“At this moment in time, he is fully fit and available for selection. Ryan was smiling and happy, which is always a good indicator.

“It looks as if he is up and running.”

Stephen Jones, Gethin Jenkins, Lloyd Burns, Craig Mitchell, Scott Williams and Lee Byrneare all expected to start against Namibia, who lost 87-0 to South Africa in their last outing.

And while Wales’ experience and ability should prove easily enough for a bonus-point win over the Welwitschias, forwards coach Robin McBryde insists they can’t afford to take it easy.

“We've got to go out as hard as we can,” McBryde said.

“Samoa and Fiji showed the way (against Namibia). They just went out hard from the word go and got the result first, then concentrated on the performance afterwards.

“I think that is the way we've got to go as well. The outcome of the group is undecided. I think it's going to go all the way, and who knows what is going to happen in the other fixtures?

“Samoa and Fiji have got a lot to play for, and I don't think South Africa will take Samoa lightly.”