Peer , 19 , surged into the third round of the United States Open yesterday with a 6-1 , 5-7 , 6-2 victory against Martina Muller of Germany .
Martina Muller /people/person/nationality Germany
NNP , CD , VBD IN DT JJ NN IN DT NNP NNPS VB NN IN DT CD , CD , CD NN IN NNP NNP IN NNP .
Martina Muller
PERSON
Germany
LOCATION
/people/person/nationality