[icWales] MARTYN Madden's hopes of forcing his way into the Wales team to face Scotland have been scuppered by a new injury setback.
The Llanelli prop had been tipped as a possible replacement for Ben Evans having recovered from the bruised shoulder that ruled him out of first two championship matches against Italy and England.
But he has aggravated the injury in training and is unavailable for Saturday's trip to Murrayfield.
Wales coach Steve Hansen said: "Martyn, he has banged his shoulder again and he won't be considered for selection."
Hansen now has to decide whether to stick with Evans or employ Pontypridd loosehead Gethin Jenkins on the tighthead.
Meanwhile, skipper Jonathan Humphreys is given only a 50-50 chance of being fit to face Scotland. The Bath hooker is facing a race against time after injuring his shoulder against Saracens at the weekend.
"He is still sore at the moment," said Hansen.
If Humphreys is ruled out, then Mefin Davies or Gareth Williams will start at hooker. As for the captaincy, Colin Charvis would probably return to the helm, if selected.
But if Charvis remains on the bench, then Cardiff skipper Martyn Williams would be the favourite for the job.
"Martyn is going to be a Wales captain at some stage of his career and a very good one," said Hansen.
"I am sure when the time comes he will take over the reins from Colin.
"If Colin doesn't make the team against Scotland, Martyn possibly will get a practice run."