Finn Russell has lost his appeal against the two-match ban imposed for a dangerous tackle against Dan Biggar.
Scotland lock Richie Gray will be on the sidelines for the rest of the RBS Six Nations Championship.
Wales extended their winning run against Scotland and got back on track in the Six Nations with a 26-23 victory at Murrayfield.
Dan Biggar is confident Wales can get their Six Nations campaign back on track against Scotland on Sunday.
Wales have been forced into a late change to their line-up for the Six Nations match with Scotland after prop Samson Lee was ruled out.
Sky Sports' Jonathan Davies reflects on a tough weekend, but says his team is far from out of the 2015 Six Nations.
Vern Cotter has made two enforced changes to his Scotland side to face Wales at Murrayfield on Sunday.
Scotland captain Greig Laidlaw will talk to the referees to ensure his side stay "squeaky clean" against Wales.
George North has not been named in the Wales team to face Scotland at Murrayfield on Sunday.
World Rugby say George North should have been taken off but accept the explanation offered by the Wales medical team.
Wing Dougie Fife says Scotland are confident they have the ability to defeat Wales at Murrayfield on Sunday.