 She returned to Sydney for the 2000 Summer Olympics as the sole survivor of the 4 x 100 meters, this time she lined up with double sprint gold medalist Marion Jones and fellow Americans Torri Edwards and Nanceen Perry but could only come away with the bronze medal.In 2003, Gaines was issued a Public Warning and had her results disqualified for the detection of Modafinil.The same year she was investigated as part of the BALCO scandal and in 2004 she received a two-year doping ban.