Fergie puts faith in Ruud
United face Serie A leaders AC Milan in front of a capacity 80,000 at the San Siro needing to overhaul the Italians' single goal first-leg advantage if they are to advance to the Champions League quarter-finals.
As a challenge, Ferguson rates it even tougher than the mountain his team climbed to beat Juventus in the 1999 semi, after finding themselves 2-0 down at the Stadio delle Alpi.