Armstrong feud eclipses Mercado win
The Texan, set to win a record sixth overall title on Sunday, re-ignited his personal feud with Filippo Simeoni in an incident which sparked a furious reaction from the Italian and his team boss.
Simeoni is currently suing Armstrong who called him "a liar" after the Italian testified in a court case against Dr Michele Ferrari, an adviser of Armstrong who is facing doping-related charges.