Does David Tua have any shot against this man?
World champion Lennox Lewis will dismantle No. 1 contender David Tua Saturday night in Las Vegas. And, if previous warnings hold true, such a result — whether it’s an early devastating knockout or a prolonged pummeling — will wipe out the old heavyweight guard, leaving a group of unproven youngsters to tussle over championship belts that will become even more irrelevant than they already are. It might sound like a stretch now, but a decisive Lewis victory could set into motion a chain of events that would deplete boxing’s most glorious division of virtually every big name. There are scant few major heavyweight fights to be made. But one megabout that stands out is between Lewis and Mike Tyson. Both fighters once craved that match, but now each is dealing with the specter of retirement. Tyson announced he wasn’t going to fight after his Oct. 20 fight with Andrew Golota. Now Lewis has gone on record as saying he might walk away from the sport if a bout against Tyson cannot be made. “Ob
