Stephens into Wimbledon's 4th round for 1st time

Sloane Stephens of the United States serves to Petra Cetkovska of the Czech Republic during their Women's singles match at the All England Lawn Tennis Championships in Wimbledon, London, Friday, June 28, 2013.

http://www.sfgate.com/sports/article/Stephens-into-Wimbledon-s-4th-round-for-1st-time-4637848.php