Daily Bagel: Madison Keys on One Direction, Azarenka's fitness regimen

The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.
• U.S. skier MikaelaShiffringot a pic with Novak Djokovic. If Shiffrin wants to tour Serbia I'm sure Djokovic, who grew up skiing, knows all the skiing hot spots.
• Caroline Wozniacki says she "grew up so much" after her breakup with Rory McIlroy. Wozniacki plays Madison Brengle today at the Miami Open.
• With Wednesday's results, two big second round matches are now confirmed: Sloane Stephens vs. Madison Keys and Victoria Azarenka vs. Jelena Jankovic.
• Steve Tignor looks back to 1973, the year the ATP instituted computerized rankings.
• A look at Azarenka's new fitness regime.
• Eric Sock interviews his brother Jack for ATP Insider:
• Milos Raonic on the cover of Harry magazine in Canada. Sadly, it's not a magazine devoted to hair.
• Fun interview over at Sport360.com with Mansour Bahrami.
• We wrote about South Korea's Hyeon Chung in our top teenagers roundup: Now he's earned his first ATP main draw win in Miami.
• An interview with the retired Xavier Malisse (translated by Deep Tennis) on his brief stint with Team Tomic, the decision to retire and his love of Roger Federer.
• The WTA posted an entire story about Madison Keys' tweet about One Direction using almost nothing but One Direction song lyrics.

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.