Vince Spadea of the United States and Novak Djokovic of Serbia both retired from second-round matches with injuries , and when the Argentine outsider Jose Acasuso got a long , deep rub on his left thigh from a trainer because of cramps early in the fifth set of his marathon against Andy Roddick , it looked as if there might be another casualty .
Novak Djokovic /people/person/nationality Serbia
NNP NNP IN DT NNP NNPS CC NNP NNP IN NNP CC VBN IN JJ NNS IN NNS , CC WRB DT JJ NN NNP NNP VBD DT RB , JJ NN IN PRP$ JJ NN IN DT NN IN IN NNS RB IN DT JJ NN IN PRP$ NN IN NNP NNP , PRP VBD IN IN EX MD VB DT NN .
Novak Djokovic
PERSON
Serbia
LOCATION
/people/person/nationality