text: Men Set for Sizzling Duel in 100 Meters ATHENS, Greece - The preliminaries in the 100 meters were perhaps just a sample of what's to come Sunday, when a talented group of qualifiers - including Americans Shawn Crawford, Justin Gatlin and defending champion Maurice Greene - will try to turn their competition into the fastest show at the Athens Games.    Five men broke 10 seconds in qualifying Saturday, led by Crawford's time of 9.89...