Colombia striker Radamel Falcao has failed to recover from knee surgery and was left out of their World Cup squad on Monday, coach Jose Pekerman announced. The 28-year-old ruptured the anterior cruciate ligament in his left knee while playing for Monaco in a French Cup match in January. Falcao, nicknamed Tiger, was a key element of the Colombia squad that finished second to Argentina in the South American qualifying group, scoring nine goals in 13 matches. Experienced defender Luis Amaranto Perea, who has been recovering from injury, and forward Luis Muriel also missed the cut from Pekerman's provisional squad. Click here to read full news..