Australian Cadel Evans has opted to compete in May's Giro d'Italia in a bid to revive his career.
The 36-year-old has struggled for form since winning the 2011 Tour de France and could only finish seventh in last year's Tour.
Evans blamed his performances on a virus and is now looking to make up for the racing he has missed in the last 12 months.
"The team will put everything into the Tour de France," he said in a statement from his BMC team.
"My situation is a bit strange because there are not many riders who perform better with two grand tours than one in their legs. In my situation, with the racing I missed last year, I need and I feel comfortable with this programme."
Many pundits feel it is impossible to win both the Giro and the Tour in the same year but Evans hopes to break the mould.
Last week, he said he was committed to being team leader on the Tour and that the media have a "short-term memory" when it comes to his potential.
Team Sky rider Briton Bradley Wiggins, who won last year's Tour, will also ride this year's Giro and the Tour but has made the Italian race his major aim.