Formula one drive Mark Webber has spoken out about the flaws in Lance Armstrong's personality that saw the two former buddies fall out in 2008.
In a column for the BBC sport website, Webber said that he struck up a friendship with Armstrong over a couple of years and went riding with him on occasion but became disillusioned after he failed to show up for the Monaco Grand Prix.
"Red Bull Racing had gone out of their way to meet all his demands, which were not inconsiderable, and had everything laid on, but he failed to show without a word of an apology. I thought it was very poor form and I was disappointed," Webber wrote.
"That, coupled with the persistent rumours about Armstrong being a serial liar and a drug cheat, and long conversations I had had with the respected sports journalist Paul Kimmage (who had been on Armstrong's case for years), made me realise that perhaps he wasn't all I had hoped him to be," Webber wrote.
"I kept asking myself how it was that everyone who beat Armstrong tested positive but he never did. It became a very heavy and difficult subject to discuss with the mutual friends we shared.