IRELAND prop Dave Kilcoyne has been ruled out of the Six Nations after his club Munster said he will be out for six months with a shoulder injury.The 35-year-old, below, underwent surgery on Thursday. Kilcoyne has 56 Ireland caps and made four appearances off the bench in the World Cup. He also featured in Ireland’s Grand Slam win last year, earning his 50th cap in the thrilling win over France in Dublin. Ireland begin their Six Nations defence against France in Marseille on February 2. Kilcoyne’s injury absence adds to mounting fitness worries ahead of next week&#x...