The Italian scored major style point in an otherwise frigid match in Monterrey on Thursday night.
The 24-year-old says she needs to rest and restore her energy levels for the rest of the season.
Juan Martin del Potro has accepted a wild card into next week's BNP Paribas Open — his first tournament since Sydney in January.
Tweets indicate Serena's former hitting partner, Sascha Bajin, now working with Victoria Azarenka.
Dinner before the duel is a Davis Cup tradition. We go behind the scenes at this week's Davis Cup dinner parties.
Ana Ivanovic arrived in Monterrey as Catwoman, rocked the city as a street drummer, then got a bear hug from this furry friend after her first-round win.
Andre Agassi tells UK Guardian that Andy Murray's best is still yet to come.
