Portugal have confirmed that Cristiano Ronaldo is suffering with tendonitis in the patella tendon of his left leg, although he is back in training.
Marca reports that the Portuguese Football Federation have released a statement that confirms the problem plaguing the Real Madrid forward, having previously only said Ronaldo was troubled by a thigh muscle injury.
Ronaldo did however begin training on Tuesday, working with one of the Portugal coaches, Antonio Gaspar, including doing some ball work.
Madrid are said to be concerned with Ronaldo’s fitness, however, and are worried he could aggravate his injuries during the World Cup.
Ronaldo was struggling towards the end of the League season as well and was forced out of the team near the end of the campaign due to a muscle injury.