rtokens: " A win is a win .
pos: DT JJ NNP , DT JJ JJ NNP NN , VBD JJ NN IN DT NN RB IN NNP WRB DT NNP , VBN IN DT JJ NN NN , VBD PRP MD RB VB IN DT NN NNS IN DT NNP NNP NNP .
tokens: The 30-year-old Edberg , a former two-time Open champion , had wrestled control of the match away from Karbacher when the German , hampered by a left hamstring injury , decided he could n't continue under the stadium lights at the National Tennis Centre .
ltokens: Refusing to go quietly in the night , Stefan Edberg extended his stay at his 14th and last U.S. Open when Bernd Karbacher , trailing and hurting , quit in the fourth set of their second-round match Friday .