Don't feel guilty if the prospect of Joe Calzaghe, aged 36, against Roy Jones Jnr, 39, at the Millennium Stadium in Cardiff later this year is slow to set you swooning. It is no disrespect to the admirable Calzaghe, who would have been a celebrity of boxing on both sides of the Atlantic roughly a decade ago if his sport wasn't almost entirely dedicated to risk avoidance and guaranteed profit.