Six Nations 2014: Wales' Webb and Charteris may be fit

Rhys Webb leaves the field injured

Wales are "not looking outside the squad for any answers" ahead of the Six Nations match with Scotland following the 29-18 defeat by England.

Forward coach Robin McBryde added lock Luke Charteris and scrum-half Rhys Webb had not yet been ruled out.

Charteris missed Twickenham with a neck injury while Webb played, but limped off with a sore ankle.

"Luke has to go through the return-to-match protocol," McBryde said and added Webb's ankle was being monitored.

McBryde told a Tuesday media conference that no players had been called into the squad ahead of their final game of the tournament in Cardiff on Saturday.

Wales have faced intense criticism over player selection and tactics in Sunday's loss to England, with World Cup-winning England coach Sir Clive Woodward saying Wales coach Warren Gatland should have changed his half-backs at half-time

Woodward said Webb and fly-half Rhys Priestland were "particularly poor" at Twickenham.

The Ospreys scrum-half was selected ahead of British and Irish Lions Test player Mike Phillips following an impressive display in the 27-6 win over France in Cardiff.

But he had an uncomfortable time in Twickenham, before limping out of the game after an hour.

Jake Ball replaced Charteris against England after coming in as a late replacement for Alun Wyn Jones in the previous game against France.

McBryde, who won 37 Wales caps as a hooker, said the players and management understood the disappointment felt by fans at Wales' failure to deliver a third successive Six Nations title.

"It's a quick turn around," he said.

"You can't dwell too long on the performance against England as disappointing as it was - and there's no-one more disappointed than the players and the coaches with the fact that we haven't delivered.

"There is an expectancy and we haven't lived up to it against Ireland and we haven't lived up to it against England.

"That expectancy surely would have grown for our last home match against Scotland and we can't shy away from it.

"We've got to answer a few questions, but we have to answer them on the field."

The former Scarlets player claimed a lot of the problems the team encountered on the field at Twickenham were of their own making.

"We know where we've fallen down," he said.

"We know that we weren't good enough in our execution, our composure and it really didn't give us any sort of platform to work off.

"A lot of those things are within our control and we're not looking outside the squad with regards to finding the answers to the questions that we've got."

Coach Gatland will name the team to face Scotland at 11:00 GMT on Thursday, and will definitely have to make one change with full-back Leigh Halfpenny ruled out for the rest of the season after dislocating his right shoulder at Twickenham.