Colombia striker Radamel Falcao will go to the World Cup but risks not being 100 percent fit, the surgeon who operated on the Monaco star's ruptured knee ligaments said Friday.

"At the highest level, at the start of the competition, Falcao could not be 100 percent," Jose Carlos Noronha told the Lusa news agency.

Falcao, seen as key to Colombia's hopes at the World Cup, suffered the injury in a French Cup match on January 22 and went under the knife three days later in Porto.