The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.
• Video: Feliciano Lopez beats John Isner, Bob Bryan and Mike Bryan for the longest serve in Valencia.
• There is Fed Cup drama brewing: The Russian Tennis Federation is running into problems fielding a team for the Fed Cup after most of its top players are either injured, choosing to play a WTA tournament instead or flat-out refusing to play because of the Federation's lack of financial support. This is embarrassing for both Russian tennis and the ITF.
• From CNN, an inside look at tennis players' diets.
"Players are looking to eat a lot of salads, a lot of fruits, pastas and then white meats, chicken and fish are really popular," Butorac said.
"The cuisine can vary tournament to tournament but also normally what the tournaments week in week out provide is some really healthy options that allows us to stay very fit."
But with this austere regime -- fat free and alcohol free -- has the sheer joie de vivre gone out of the game?
"I believe the fun on the tour has dropped," said American Butorac. "There is very little alcohol consumed as players take their matches and practice very seriously.
"But the tour is still a great place to be and there is plenty of fun to be had, though the stories we hear about what it was like 'back in the day,' it isn't even close nowadays."
• Petra Kvitova seems poised to mount her comeback after a disappointing season. Then again, we've said that before.
• Pat Cash on Bernard Tomic's coaching dilemma.
Cash claims no top coach would be prepared to put up with Tomic while the shadow of his father lurks in the background.
"He needs stability," Cash told The Courier-Mail from London.
"The big problem was that no top coach would go near him because of the situation with his dad. Now that his dad is not on the scene as much there is a chance somebody may be willing to try and help him.
"Top coaches will not put up with crap. Brad Gilbert and guys like that have had goes with Andy Murray and they just said, ‘I am not putting up with abuse.’
"They don’t have to put up with it. Tomic has to prove himself to the top coaches.
• Hopeful news: Former No. 2 Vera Zvonareva has confirmed her participation in the WTA Tournament in Shenzhen, China. Zvonareva hasn't played a match since the 2012 Olympics due to injury. Li Na and Sara Errani have also confirmed.
• Midwest Sports put together a helpful guide to choosing a tennis racket.Slate's Dahlia Lithwick