Daily Bagel: Serena's workout mix

The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet. • Check out this slow-motion video of Novak Djokovic

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

• Check out this slow-motion video of Novak Djokovic in action. It's mesmerizing.

• Want to work out like Serena Williams? Here's a 60-minute workout mix curated by the woman herself.

• Billie Jean King reflects on the birth of women's professional tennis. King and the rest of the Original 9 will reunite Saturday at the Family Circle Cup in Charleston, S.C.

• Bernard Tomic, who is coached by his father, is OK with the Australian Davis Cup team's ban on parents as part of the team camp.

• The top Romanian men have boycotted this weekend's Davis Cup tie against the Netherlands in protest of the dismissal of captain Andrei Pavel.

• The ATP highlights its most improved players through the first part of 2012: Milos Raonic, Tomic, Matt Ebden and Kei Nishikori.

• A fine long read by Jon Wertheim from last week's Sports Illustrated about Richard Williams and Karl Behr, two great tennis players who survived the sinking of the Titanic. You can hear Jon discuss the article on the Inside Sports Illustrated podcast with Richard Deitsch.

• These pictures from Caroline Wozniacki's video shoot for her charity songOxygen make me very curious about what the "storyline" will be.

• Non-tennis: Lots of people are rooting for Tiger Woods this weekend at the Masters. GQ argues that you shouldn't:

But when the fissures in Tiger's veneer became faults and their friction brought on a big old global quake, what was left to gain was the clearest picture of the star we'd ever seen. Instead of coming clean, though, and owning up in full to -- or maybe even altering -- the behavior he'd concealed all along, he has made certain he is less exposed, not more. He's doubled down on the strategy that broke him. The mistake, Tiger seems to believe, was that the secret had gotten out, not that he'd misplayed his power.

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