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Leigh Halfpenny (right) in training with Wales this week

Six Nations: Wales v England Venue: Principality Stadium, Cardiff Date: Saturday, 23 February Kick-off: 16:45 GMT Coverage: Live on BBC One, S4C, BBC Radio 5 live, BBC Radio Wales, BBC Radio Cymru & BBC Sport website and BBC Sport app, plus live text commentary.

Wales full-back Leigh Halfpenny has not been ruled out of Saturday's Six Nations clash with England in Cardiff.

The British and Irish Lion, 30, has not played since being concussed in the 9-6 win against Australia on 10 November.

He went back to Scarlets last week, but did not play in the defeat by Benetton.

"Leigh was released but didn't play last week. We just felt he needed a little more contact and that's what he's going to have," said Wales forwards coach Robin McBryde.

The former Wales hooker added that Dan Biggar was also in full training after being taken off with knee injury while playing for his club Northampton Saints last week.

Both players resumed training with Wales on Monday.

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"They're training with us, so hopefully they'll be fit enough for selection - we'll measure both of them as the week goes on," added McBryde.

"With Leigh it's an individual case and those discussions will take place with the medical team and the coaches and Leigh himself.

"There's no way that we would put somebody in a position he's not comfortable with."

With Liam Williams available at full-back and Worcester's Josh Adams displaying good form on the wing, it appears unlikely Wales would risk Halfpenny in a match between the only two unbeaten teams left in the tournament.

Biggar started at fly-half in Wales' 26-15 win in Italy, though Cardiff Blues' Gareth Anscombe was selected for the victory over France.

Another stand-off, Rhys Patchell, who was injured for the first two rounds of games, played for Scarlets in Italy at the weekend before rejoining the Wales camp.