Cristiano Ronaldo is an injury doubt for Portugal's World Cup opened as he struggles to recover from a leg problem. The Portuguse FA said that Ronaldo is suffering from 'a muscle injury on the back of his left thigh as well as left-leg patellar tendinitis'. Ronaldo missing out will be a big blow because Portugal are in the Group of Death and meet Germany in their opener. While everyone knew about the thigh problem the issue of patellar tendinitis also known as jumper's knee represents a new problem. Ronaldo however is still training despite the injury and worked alongside Raul
