Wales co-captain Jack Morgan has been ruled out of the Moon game and is a serious doubt for the Six Nations.

Morgan underwent knee surgery last week and although the operation went well, the 23-year-old will be sidelined for a long time. With just five weeks to go until the first Six Nations match against Scotland, it looks increasingly unlikely that Morgan will start the championship.

“Jacques had surgery this week so we wish him the best and nobody wants to see any of the players go through that,” Ospreys manager Toby Booth said after the team’s victory over the Scarlets in Llanelli. “The operation was a success and it was the right thing to do because you don’t know, even with the best tests, until you get there.

“It had to be done in the best positive way possible. “He’s a young man who’s on the road to recovery and he’d love to be there today, but the confidence of being a professional rugby player is going to drain you.” injured for some time, and this stability passes the test.

“We’re going to try to get him off the field better so that when he comes back, which will probably be months, not weeks, he’s on the floor.” Asked if it would be difficult for Morgan to reach the Six Nations, Booth said: “Yes, definitely.”

If Morgan is ruled out, Leicester’s Tommy Raffel will be the clear favorite to wear the number seven shirt against Scotland at the Principality Stadium, alongside options such as Thane Basham, James Botham, Thomas Young and Josh McLeod.