The French Senate Commission 's anti-doping report has branded German sprinter Erik Zabel a liar .
The French Senate Commission 's anti-doping report included a list of riders who tested positive or suspicious for EPO use at the 1998 Tour de France .
The French Senate Commission 's anti-doping report , which included a list of riders who tested positive or suspicious for EPO use at the 1998 Tour de France , has branded German sprinter Erik Zabel a liar .