Career
When he was 17, he moved to Italy to race for the team Rinascita Ormelle, based in Treviso. After that he moved to Gli Amici Piave, the team of Moreno Argentin. In 2001 he joined the team Mapei–Quick-Step and became a professional cyclist, from 2003 on he joined FDJeux.com.
In 2007, Eisel changed to T-Mobile Team.
Eisel enjoyed a successful first season with his main victory coming on Stage 2 of the Volta ao Algarve. Eisel established himself as the right-hand man of sprinter and team mate Mark Cavendish, protecting him throughout the flats and mountain stages and forming part of the HTC lead out train that saw Cavendish take many notable victories in the Tour de France and other races.
Eisel also had opportunities to ride for himself, mainly in the classics. Following the announcement that HTC–Highroad would fold at the end of 2011, Eisel joined Mark Cavendish in moving to Team Sky.
After Cavendish announced he would cut his three year deal with the team short to move to Omega Pharma–Quick-Step, Eisel announced he would stay with Team Sky until the end of the 2015 season.
On 28 September 2015, Sky announced that Eisel would be among the riders leaving the team at the end of the year, following four seasons with the team The following day it was announced that he had joined Cavendish (and Mark Renshaw, their former teammate at HTC) in signing for MTN–Qhubeka – to be renamed as Team Dimension Data. Grand Tours overall classification results timeline
World Development – Withdrew.