Daily Bagel: Ivanovic beats Serena, Davis Cup news and more

The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet. • Read about that one time Roger Federer was left in a

The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.

• Read about that one time Roger Federer was left in a puddle of inconsolable tears when he blew a two-sets-to-love lead to Lleyton Hewitt in the 2003 Davis Cup?

• ​Just because he could finally win it doesn't mean his opinion has changed over it: Federer tells Doug Robson for USA Today that Davis Cup won't "complete" his legacy. 

• All eight players in this weekend's Davis Cup final live in Switzerland. 

• Will this be the last "great" Davis Cup final? 

• Nick Kyrgios to make London a training base during the season.

[tweet=https://twitter.com/GQAustralia/status/535208833267036160]

• If you can read German, this is a beautifully laid-out special on the Swiss Davis Cup quest from Swiss newspaper Tages-Anzeiger. 

• It was only a matter of time: Juan Martin del Potro is play-testing new rackets. Given he was down to his last two rackets, this makes sense.

Post by Juan Martín del Potro.

• FiveThirtyEight debunks France's home court advantage in the Davis Cup final. 

• Want to download the 2015 tennis schedule into your calendar? Do it here. 

• Tracking the progress of the roof over Arthur Ashe Stadium. 

• Simona Halep and Petra Kvitova will headline the Shenzhen Open.

• Serena Williams and Ana Ivanovic played in an exhibition in Denmark on Wednesday. Ivanovic won 6-4, 6-4. 

• You know his voice, now get to know the man: An interview with tennis commentator Nick Lester. 

• Sania Mirza on India: "We're not a sporting nation. We're a cricketing nation."

• Tennis Island weighs in on their 10 Best WTA Matches of the season. Solid compilation.

• Here's a Vodafone commercial featuring Halep and her mom:

[youtube=http://youtu.be/63bUpndDQZ0]