DiscoveryChannelProCyclingTeam'sLanceArmstronghasnotwoneveryTourdeFrancesince1999simplybecauseheputsinextramilesoftraining,watcheswhatheeatsorevenbecausehe'sdodgedmajorinjuriesoverhislongcareer.PeoplehavegonetogreatlengthstoexplainawayLanceArmstrong'sgreatnessasanathlete.Somelookforexplanationsinhisphysiology.Somesayhiswillisjuststrongerthanmost.Otherssayhe'sruthlesslydemandednolessthanexcellencefromhisteammates.Thetruthliessomewhereinacombinationofthesefactors,andfewaspectsofhisstoryarelessthanfascinating.Heleaveshiscareeratthetopofhisgame,withanunprecedentedsixTourdeFrancewinsunderhisbike.Butwhat'strulyamazingishe'sdonethisafterbeingissuedaneardeathsentence.In1998hewasdiagnosedwithstage3testicularcancerthathadmetastasizedinhislungsandbrain.