The 2017 British & Irish Lions player of the series against New Zealand has been absent for the past eight months after breaking his foot in international action against Australia.
In that time, Davies’ younger sibling James – a team-mate of his at the Scarlets – has won three Wales caps.
The family plan is for the pair to wear the red jersey in the same game at some point this year.
“If I had the opportunity to play with James for Wales it would honestly top anything I’ve done in rugby,” said Davies.
“But we both understand each of us have a lot of work to do to get to that point. It would be a very proud day for us as a family, I couldn’t think of anything better, really.
“James is finally flying the Davies name, it is about time! No, he has done extremely well, he has taken his opportunity, and I was over the moon for him when he got his chance.
“I thought he gave a great account of himself when he was out in Argentina.”
James Davies made his senior international debut against Italy in the 2018 Six Nations and then impressed in the two Tests with Argentina this summer.
The all-action flanker was everywhere as Warren Gatland’s side sealed a first series win in the land of the Pumas since 1999.
While all that was going on, Jonathan Davies was battling back to fitness and the 30-year-old has revealed how his latest injury was the toughest of his career.
He insists he is now fully fit and is excited by the challenges which lie ahead this season.
“It was difficult and probably the worst injury I have had,” Davies said.
“It feels good now though and I feel back to 100 per cent. I broke two metatarsals and tore the Lisfranc ligament in my foot.
“It was like a foot dislocation and I have had a plate and five screws put in. I came back in a couple of weeks ago and I’ve been in full training.
“I had a good long break and I am ready to push myself through pre-season for the start of the campaign. The Welsh Rugby Union and the Scarlets were not rushing me so I was able to take my time and come back right.
“Like every other Welsh player I would love to get to the World Cup, but for me it is about delivering the standards I set before the injury and making sure I get my performances up to scratch.
“If I can do that, then hopefully Warren will recall me into the squad.”
