Fourhand: A History of Letterman's Tennis Guests

Fourhand is the Daily Spin's occasional roundup of various hits and misses on tour.

BACK TO BLACK Ana Ivanovic has a "futuristic" yet "feminine" feel in her new French Open dress from the Adidas Y-3 Collection. She's even sporting knee-high socks with the black number, set to debut next week in Paris.

#THANKSDAVE David Letterman has hosted many memorable late-show appearances (here's looking at you, Madonna, Drew Barrymore, and Joaquin Phoenix), and he's had a riot at times with stars of tennis past and present. Here's a not-entirely-comprehensive look at those showings. Most recently, this:

ACTING UP Actress Eva Longoria, who most recently appeared at a gala in Monaco alongside friend Serena Williams and Caroline Wozniacki, speaks to espnW about her friendship with Williams and her amazement at the WTA No. 1's accomplishments. "Athletes have a true talent," Longoria says. "They are going out there every time proving their talent, where I think actors just pretend to have a talent."

APP THAT Zepp has a new app that allows a player to take note of spins, racquet-head speed, quality of shot, and more statistics that the sport sorely needs. Their guinea pig for getting this technology out there: one Milos Raonic.

Got a tip or a point to make? Hit me on Twitter at @jonscott9.