On 24 May 2007, Erik Zabel admitted using EPO during the first week of the 1996 Tour,[176] when he won the points classification. Following his plea that other cyclists admit to drugs, former winner Bjarne Riis admitted in Copenhagen on 25 May 2007 that he used EPO regularly from 1993 to 1998, including when he won the 1996 Tour.[177] His admission meant the top three in 1996 were all linked to doping, two admitting cheating.