Andy Powell has given Wales an injury scare on the eve of their Six Nations title decider against Ireland.

The Cardiff Blues No8 pulled out of today's final training session due to a sore thigh muscle. Wales's head coach, Warren Gatland, said the injury was "a slight concern".

Powell has started every Six Nations game this season, although he has failed to reproduce the form he showed during the autumn Tests, especially on his debut against the world champions, South Africa.

Gatland said: "Andy has got a bit of a sore quad. He didn't do the whole session so we will see how he pulls up from that.

"It is a slight concern. He pulled out of the session because his quad was pretty tight."

If Powell is ruled out, the Scarlets forward Dafydd Jones will play, with the Ospreys flanker Jonathan Thomas joining the replacements.