12 things you should know about 19-year-old American Madison Keys

MELBOURNE -- 19-year-old Madison Keys advanced to her first ever Slam quarterfinal after defeating Madison Brengle 6-2, 6-4 at the Australian Open on Monday.

Courtney Nguyen | Jan 26, 2015

12 things you should know about 19-year-old American Madison Keys /

MELBOURNE -- 19-year-old Madison Keys advanced to her first ever Slam quarterfinal after defeating Madison Brengle 6-2, 6-4 at the Australian Open on Monday. The American teen, who is now under the guidance of three-time Slam champion Lindsay Davenport, credits her new coach and improved fitness for her great run in Melbourne, which includes her defeat of reigning Wimbledon champion Petra Kvitova in straight sets in the third round. Get to know the affable American, who has made everyone sit up and take notice.

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Published Jan 26, 2015

COURTNEY NGUYEN

Contributor, SI.com Nguyen is a freelance writer for SI.com, providing full coverage of professional tennis both on and off the court. Her content has become a must-read for fans and insiders to stay up-to-date with a sport that rarely rests. She has appeared on radio and TV talk shows all over the world and is one of the co-hosts of No Challenges Remaining, a weekly podcast available on iTunes. Nguyen graduated from the University of California, Irvine in 1999 and received a law degree from the University of California, Davis in 2002. She lives in the Bay Area.