US Open: Home hopes hit as Madison Keys makes 89 unforced errors in first-round loss

Australian Open champion beaten by Renata ZarazúaWorld No 6 suffers string of errors in lossOne of the main home hopes at the US Open has suffered an early exit from the tournament after Madison Keys lost in the first round on Monday.There were early signs the world No 6, who won the Australian Open in January, faced a tough match against Mexicos Renata Zarazúa. The American won the first set, but only after taking a marathon tiebreak 12-10. Zarazúa won the second set on another tiebreak (7-3...