Wales will be sweating over Dan Biggar’s fitness ahead of their Guinness Six Nations clash with England after the fly-half was forced off with a knee injury while playing for Northampton Saints.
The 30-year-old has been a key figure in the Championship and has scored 34 points so far, including a try in the 27-23 defeat to France.
However, he was forced off after just 20 minutes in the Saints’ 27-21 Premiership defeat to Saracens.
Saints boss Chris Boyd believes the injury is not as bad as first feared and Wales’ head coach Wayne Pivac must now wait for scan results.
“I don’t think it is serious,” Boyd told BBC Sport.
“He’s hyper-extended his leg in a collision and seems to be moving relatively okay. I don’t think he’s got any major structural damage from what I’m led to believe so it’s one of those ones we’ll wait and see.”
If Biggar is ruled out, Jarrod Evans could be in line to take his place at Twickenham for the pivotal Round 4 fixture.
Pivac has already lost wing Josh Adams for the rest of the Championship after he suffered an ankle injury, while George North was also taken off early in the 27-23 defeat to France in Round 3.
Meanwhile, Hallam Amos is also an injury concern after he suffered a knee injury while playing for Cardiff Blues against Benetton in the PRO14 last weekend.
That kept him out of Friday’s match against Edinburgh and Blues coach John Mulvihill says he will also need a scan.
“He’s got a little bit of a knee complaint which kept him out of our performance this week, he definitely wasn’t right to play this week,” said Mulvihill.
“He’ll be re-assessed by Wales next week and we’ll go from there. He might have taken something into the Benetton game, but there was a knock towards the end.”