Club Atletico de Madrid player Diego Ribas did not train on Monday with the group due to an injury. The medical report says that Diego is suffering a hamstring injury grade I in the semitendinosus muscle, distal third, the right thigh. He will have to have an ultrasound and await developments.   On the other hand, Silvio and Godin have recovered well from injury and will be incorporated to work with the group on Tuesday.  Sergio Asenjo did not attend the training after suffering an acute case of gastroenteritis.   Madrid, September 19, 2011   Signed: Medical Services, Club Atlético de Madrid SAD