Serena is outta the Nike exo, but staying on as a ref. Think Shino will be there to join her? (Reuters)

Forget becoming an esthetician, Serena Williams is taking on a new career as a lineswoman. The sidelined former no. 1 won’t be playing in a much-anticipated return at the Nike exhibition on March 8. Instead, she’ll be a referee. That’s tough luck for the 12,000 fans expecting to see the 13-time major champion’s form alongside Roger Federer, Rafael Nadal and Maria Sharapova. Citing the foot injury that’s been kept her out since after Wimbledon, Serena released the following statement: “I’m disappointed that I won’t be able to play … as I had anticipated. I’m thrilled, however, to still be able to participate … in the exhibition as a referee during the mixed doubles.”

Is something sketchy going on here? Columnist Greg Crouch thinks so. Taking her place on court is Victoria Azarenka. With Masha and Vika both on court, make sure to bring the ear plugs, Eugene.

Pakistani dubs expert Aisam-Ul-Haq Qureshi is flashing his pearly whites (and wavy locks) in a recent ad with CloseUp toothpaste. Seriously, Rafa and Fernando, this dude is nipping at your modeling heels. He’s just going for a – er – cleaner approach.

He’s not just a hot head, he’s also an art aficionado. Getting a custom-made sculpture in the process, tennis legend and New York City art collector John McEnroe took to the streets of Delray Beach against Mats Wilander in a game of street tennis as part of the “On the Ave” exo. Although Mayor Woodie McDuffie served as the chair umpire, it didn’t make Johnny Mac bite his tongue or keep the snide remarks at bay. He called Mayor McDuffie’s math “fuzzy” on his way to winning the TB 13-11. “I was down 2-1, and now I’m up 3-1; I like that. Is that how they count in Florida?” McEnroe quipped.

After being honored with work from artists of the Milagro Youth Center, McEnroe said, “This is definitely unique. Anybody that knows about me knows that I’m a big fan of the arts. I’ve been a collector for 30 years since I first made money playing the sport I love… The greatest compliment I’ve received as a player was that I was an artist on the court.” But seriously, what is hanging over his headboard? Oh the things we wonder.

Caroline Wozniacki has reclaimed the world’s no. 1 ranking after winning in Dubai over Svetlana Kuznetsova. Kim Clijsters nabbed the distinction from Caro for just one week ago. Kamakshi Tandon and Steve Stignor volleyed back and forth on their thoughts of the flip flop. Whether the system’s flawed or not, expect much more of the Caro-Kim ranking fight in the coming months, especially with Serena playing referee.

Splitsville: ”Super Mario” Ancic has called it quits on his ten-year career due to a severe back injury. According to the 2004 Wimbledon semifinalist and former world no. 7, “It was one of the toughest decisions I ever had to make. I’m only 26 but my body said I would not be able to continue on a high level.” Although he’ll be missed on the tennis courts, expect him to put his energy into a different type of court. The University of Split law grad now plans on pursuing a career as a lawyer. So long, counselor. | TSF Vault: Mario Ancic

(serena and ancic photos by reuters)