Ireland assistant coach Simon Easterby says Ciaran Frawley and Calvin Nash are set to be fit for Saturday's crunch Six Nations game against Scotland.

Ireland need to avoid defeat in Dublin to retain the Six Nations title.

"Both are on track to play - no-one is ruled out yet," said Easterby on Tuesday.

"Obviously Nashy and Frawls have to go through the process and make sure they don't have symptoms; if they did that might put them back a day."

"No-one else sat out training bar the two boys."

England's last-gasp victory at Twickenham ended Ireland's hopes of back-to-back Grand Slams, but they are still firm favourites to win the championship in Saturday's final round of games.

Ireland sit four points clear of England, who take on France in Lyon later on Saturday.

England will clinch the title if they win with a bonus point and Ireland fail to collect a point, while Scotland still have a mathematical chance of topping the standings despite coming off a shock defeat by Italy.

Scotland need to win with a bonus point, deny Ireland a point and overturn Ireland's huge points difference advantage to have any chance.

They then need France to beat England without a bonus point or with a bonus-point win by a smaller margin.

"Like any team that loses and has high expectations of themselves, they're disappointed in how they performed [against England]," added Easterby

"We can't feel sorry for ourselves. We need to pick ourselves up for Saturday. There's no lack of clarity of what they need to get ready this week," added Easterby.

"There are subplots everywhere and we've been very fortunate over the last couple of seasons to play for something on the last weekend.

"We also know that Scotland will be smarting after that defeat to Italy, who deserved that result, but we know their back three can create problems, Finn Russell pulling the strings and when he's on form it's difficult to stop their momentum.

"We have a huge amount to play for and want to finish on a high. We want to put to bed what happened last weekend. We can't change that, but it's the last game of the Six Nations and a title on the line.

"Winning the Grand Slam last year was hard to do. We fell short last weekend, but we still have something special to play for this weekend at the Aviva."