The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.
• You don't see a lot of courtside shirt changes in women's tennis. Then again, you don't see a lot of Andrea Petkovics either. Introducing: The Petko Strip. Petkovic returned to competition over the weekend in Stuttgart, Germany, losing to Sam Stosur in Fed Cup before teaming with Julia Goerges to win the doubles rubber. Australia won the tie 3-2.
• The top guys aren't entirely on board with Madrid's decision to use blue clay. As a Masters 1000 played in altitude a week before Rome, Rafael Nadal is concerned about the players' preparation for Roland Garros. Said Novak Djokovic:
"As far as I know, most of the top players I talked to, nobody agreed. I never played on blue clay. Rafa didn't. Roger (Federer) didn't. If you don't have the top players agreeing on that, it doesn't make sense for me really. ... It's going to be interesting to step on the blue clay obviously. I'm not blaming them ... But definitely there is a certain rule within the ATP that the president is able to make decisions by himself without having players agree to that. That rule has to be changed because it's not fair."
• Russia blames an unfit Anastasia Pavlyuchenkova for its loss to Serbia. “Pavlyuchenkova didn’t have the fitness, the decline was clearly visible, you could see it," Russian coach Vladimir Kamelzon said. "She couldn’t compete with opponents like that."
• Congratulations to Sam Querrey, who won the $100,000 Sarasota Open on Sunday.
• Despite not playing last week, Mardy Fish, Juan Martin del Potro and John Isner all shuffled in the rankings. Fish is back up to No. 9, Del Potro to No. 10 and Isner drops to No. 11. Blame the Olympics, which has reshuffled the schedule so that last year's weekly points are being dropped at different times of the year.
• Caroline Wozniacki towered over Rory McIlroy at the races on Friday.
• The ups and downs of Petra Kvitova: Watch as Kvitova double-faults while serving for the match to give Sara Errani two break points on Saturday, and then proceeds to play four scintillating points to close the match. Only Petra.
• Well, we have our first two names for the women's Olympic draw:
The ITF has confirmed that Stephanie Vogt of Liechtenstein and Veronica Cepede Royg of Paraguay have been awarded Tripartite Commission Invitation places to compete at the All England Club, Wimbledon, from 28 July.
• Sir David Frost does a 30-minute interview with Andy Murray in Monte Carlo, and gets the world No. 4 to open up about his parents' divorce, potential wedding plans and the mental side of the game.
• Non-tennis: The best of journalism: 101 Spectacular Non-Fiction Stories, as curated by the Byliner's Conor Friedersdorf. Bookmark and never complain that there's nothing good to read on the Internet.