Friday, January 18, 2013
Updated: January 20, 12:33 AM ET
AP Tennis Headlines At 11:30 p.m.
No. 5 seed Kerber upset, Ferrer advances
Azarenka tops American Hampton in 3 sets
Del Potro loses to Chardy in 3rd round
Stephens tops Robson in matchup of teens
Murray into 19th straight Slam 4th round
Top players criticize Armstrong
Date-Krumm calls longevity 'a miracle'