 Yapp was a contender for Wales' Six Nations squad |
Cardiff Blues and Wales prop John Yapp has been ruled out for the rest of the season. The 23-year-old loose-head ruptured his cruciate knee ligament during the New Year's Day 29-10 win over Llanelli Scarlets at the Arms Park.
Yapp played in all five games of the victorious 2005 Grand Slam campaign, but has since struggled to cement his place in the Wales squad.
His last appearance for Wales was in the 27-25 loss to Argentina in June.
With fellow props Gethin Jenkins (finger) and Taufaao Filise (neck) injury doubts, Blues coach Dai Young has drafted Rhys Gill and Scott Roberts from the Cardiff RFC side to the squad preparing for Saturday's Magners League game against Borders.
The Blues have also lost lock James Goode for "between five to eight weeks" after he fractured his ankle against the Scarlets on Monday.