Memorable moments: Clay makes his mark  The Olympic boxing
competition has spawned many a successful professional career -
Lennox Lewis, Oscar de la Hoya and Barry McGuigan to name three
(just don't mention Audley Harrison).   Yet none has gone on to
change his sport like Cassius Clay, who won light-heavyweight
gold in Rome in 1960.  The journey to Rome was problematic in
itself for the 18-year-old from Louisville, whose fear of flying
meant he tried to pull out of the Games - he was eventually
persuaded to fly, but not before purchasing a parachute in case
of emergency.  Though considered a promising youngster, few
thought Clay was destined for stardom, though the man himself's
brashness and confidence earned him the nickname "the mayor of
the Olympic Village".  In the ring Clay was next to flawless,
stopping his first opponent, Yvon Becot, in the second round,
before winning unanimous verdicts in his remaining bouts -
outclassing Zbigniew Pietrzykowski to claim gold.  Few will need
reminding what happened n