Leigh Halfpenny is in training with Wales ahead of Saturday's Guinness Six Nations showdown against England.
The Scarlets full-back has not played since suffering concussion when Wales beat Australia on November 10.
Wales released him back to the Scarlets for last weekend's Guinness PRO14 appointment with Benetton, but he was not included in their match-day 23.
Fly-half Dan Biggar, who went off with his knee heavily strapped during Northampton's Gallagher Premiership victory over Sale Sharks three days ago, is also training.
Wales assistant coach Robin McBryde said: "They are training with us, so hopefully they will be fit enough for selection.
"Leigh was released, but didn't play, last week. We just felt that he needed a little bit more contact, so that is what he is going to have.
"We will measure both of them as the week goes on.
"With Leigh, it is an individual case, and those discussions would take place with the medical team, the coaches and Leigh himself.
"There is no way that we would put somebody in a position that he is not comfortable with. Those discussions will take place during the week."