Results Friday from the Sony Ericsson Open, a $4.5 million ATP Tour and $4.5 million WTA Tour event on hardcourts at the Tennis Center at Crandon Park (seedings in parentheses):
Andy Murray (4), Britain, def. Juan Martin del Potro (6), Argentina, 6-1, 5-7, 6-2.
Svetlana Kuznetsova, Russia, and Amelie Mauresmo, France, def. Anna-Lena Groenefeld, Germany, and Patty Schnyder, Switzerland, 7-6 (6), 6-3.