Test rugby can be an illusionary business, especially this week when it appears as if the contest between Wales and New Zealand will hinge on the physical when, really, it will be determined by the mental.
Wales, World Cup semifinalists in 2011 and Grand Slam winners earlier this year, have not become a poor side in the last six months. Injuries, bad luck and three close defeats against Australia in June conspired to rip a major hole in the side of their hull.
Argentina and Samoa have further dented the confidence and three days out from the clash with the All Blacks, the big question for Wales is, do they actually believe they can win?
Psychological frailty has been a perennial weakness of the Welsh for several years now. Talent-wise they are up there - as good as the southern hemisphere sides in terms of their ball handling, set-piece and work at the collisions.
But they are not closers. For all their endeavour, they have let many a big game slip past them. The World Cup semifinal is a classic case in point.