The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.
Overnight results: Ana Ivanovic and Caroline Wozniacki advanced to the semifinals of the Tokyo Open. Ivanovic finally got a win over Lucie Safarova and will face top seed Angelique Kerber. Wozniacki will face Garbine Muguruza. At the Korea Open, top seed Agnieszka Radwanska lost to Varvara Lepchenko for the second time in the last three months. Lepchenko will play Christina McHale in an all-American semifinal, while Maria Kirilenko and Karolina Pliskova will contest the other semifinal. Finally in Guangzhou, it will be Alize Cornet vs. Monica Niculescu in Saturday's final.
• "Be the Bird That Sticks Out": Nike honors Li Na.
• WTA Backspin looks back on Li Na's career.
• Dusting off this New York Times Magazine profile on Li from 2013: "Li Na: China's Rebel."
• I wrote about the book earlier this year, but now is the perfect time to read Li's memoir, which was translated to English earlier this year. Easily the best tennis book I've read since Andre Agassi's Open.
• Overshadowed by Li Na's retirement announcement: 18-year-old Ashleigh Barty is taking an indefinite leave of absence from professional tennis. Barty is a junior Wimbledon champion and three-time Slam finalist in doubles with Casey Dellacqua.
• Scotland will remain a part of Great Britain after the independence referendum failed on Thursday. Here's Russell Fuller for the BBC on the potential ripple effects of Andy Murray's pro-independence tweet, which came just hours before voting began on Thursday.
• Simon Briggs of The Telegraph says Murray's potential PR disaster is a cause for respect.
• Good to see Laura Robson hitting tennis balls again:
• Nick Kyrgios is burnt out. He's withdrawn from his last three tournaments of the year and will finish his season at next week's Malaysian Open.
• What impact will Li's absence have on the Wuhan Open?
• The Davis Cup final will be staged in Lille, France in a 27,000 capacity soccer stadium. Massive.