The Welsh Rugby Union says Dan Biggar is making "excellent progress" after suffering an ankle injury against Ireland on Sunday.
A decision on whether he'll be fit to play against Scotland on Saturday will be made later in the week, and the injury is not thought to be "long term", a spokesperson added.
The Wales squad reconvenes on Wednesday to prepare for Saturday's clash against Scotland at the Principality Stadium.
Luke Charteris accepts there can be no margin for error as Wales face a history-making quest to be crowned RBS 6 Nations champions this season.
No team has ever won the title after drawing a game, but that is the task now awaiting Wales and Ireland following Sunday's 16-16 draw in Dublin.
Starting next Saturday when Scotland arrive in Cardiff, Wales must realistically win three homes games - France and Italy are also due at the Principality Stadium - and topple England at Twickenham to maintain hopes of finishing top.
We saw last year how close this tournament has been over the last few years. Unfortunately, there is no Grand Slam or Triple Crown to go for now, but we have to knuckle down and get four wins from four.
I saw a bit of the (Scotland versus England) game, and they (Scotland) looked good.
It was a physical game against England - both packs went at it - and they will be a challenge, especially with us having one day less recovery, so we will have to look after ourselves.
Wales could know more in the next 24 hours or so about fly-half Dan Biggar's prospects of facing RBS 6 Nations opponents Scotland next Saturday.
Biggar went off just 22 minutes into Wales' 16-16 draw with reigning Six Nations champions Ireland in Dublin.
He was replaced by Rhys Priestland, whose goalkicking helped haul Wales back into the contest from 13-0 adrift.
Dan has a high ankle sprain, so we will know more on that in the next 24 to 48 hours.
Whether he has got to be scanned or not, I don't know. It's difficult to make assessments so soon after the game.
I thought Rhys Priestland played well when he came on, and we were happy with his performance.
Wales got their 2016 Six Nations campaign under way with an entertaining 13-all draw with Ireland at the Aviva Stadium.Read the full story ›
Wales Head Coach Warren Gatland has confirmed fly-half Dan Biggar has suffered a "high ankle sprain" in Wales' 16-all draw with Ireland.
Wales' number 10 had to come off mid-way through the first half after he picked up the knock in the game's opening phases.
Gatland said it was too early to tell if the 26-year-old will miss next week's game with Scotland and his injury will be fully assessed tomorrow.
Wales have drawn 16 all against Ireland in their opener of the Six Nations.
In the second half Wales continued their resurgence with Rhys Priestland tying the game with an early penalty.
Just ten minutes to go and Jonny Sexton struck back.
Wales now must prepare against Scotland at the Principality Stadium next week.
At half time Ireland lead Wales 13-10 in a pulsating opening Six Nations clash between the two sides.
Ireland got the first points of the game courtesy of two Jonny Sexton penalties.
The home side also scored the game's first try through scrum-half Conor Murray.
Wales struggled in the opening 20 minutes with Dan Biggar going off early with an ankle injury.
But Taulupe Faletau went over just before the break helping to bring Wales back to within three points of the home side.
Liam Williams will start at 15 for Wales in this afternoon's Six Nations game with Ireland after a hamstring injury ruled out Gareth Anscombe.
The New Zealand born fullback is expected to train fully next week ahead of Wales' home game with Scotland.
CONFIRMED: L. Williams (15) to start with Anscombe out with tight hamstring. Williams in Dublin as travelling reserve. 1/2 #iamwales
Anscombe expected to take part in full training next week 2/2
Wales second-row Alun-Wyn Jones believes his side are in "an exciting place" as they target a post-World Cup Six Nations title.Read the full story ›
What time’s kick off? How can I watch it? Who’s in the teams? Find out what you need to know here.Read the full story ›