German hardware company Wurth said in Berlin on Monday it was withdrawing immediately as co-sponsor of Astana-Wurth, following its withdrawal from the Tour de France over doping, according to Reuters.
"The decision is a reaction to the suspension of individual riders and the related pulling out of the team from the 2006 Tour de France," the company said in a statement.
Five riders in the team appeared on a list of nine Tour riders named in a doping investigation in Spain. The team, formerly known as Liberty Seguros, is led by Kazakh Alexander Vinokourov, who finished fifth last year.
Cyclingnews' recent coverage of 'Operación Puerto'
April 2, 2009 - Valverde indignant over possible suspension
April 1, 2009 - Valverde: Italy requests two-year suspension
March 13, 2009 - Le Monde newspaper hit with fine over Puerto allegations
March 2, 2009 - WADA president Fahey asks for Puerto evidence
February 24, 2009 - Spanish federation seeks access to Puerto blood bags
February 20, 2009 - CONI considers Valverde case while UCI awaits verdict
February 19, 2009 - Valverde under criminal investigation
February 11, 2009 - Valverde summonsed for Operación Puerto in Italy
February 8, 2009 - Eight charged in Operación Puerto