Caroline Wozniacki's professional career hasn't gone so well since she took up publicly with golfer Rory McIlroy, but that hasn't kept the pair from continuing to have fun together.

Traveling with Wozniacki in the United States, McIlroy showed his remarkable accuracy with a driver by launching a tennis ball from the field at Yale University's football stadium through the tunnel under the scoreboard.

That's right, a tennis ball.

It's a feat that is better seen than read about, and Wozniacki made sure to be on hand to watch her man showcase the talents, as seen in the video clip. He'll return the favor this week as Wozniacki attempts to make it five straight titles at the New Haven Open.