During a rain delay in his first-round French Open match yesterday, Novak Djokovic made a buddy—a ball boy, whom he invited to sit down, out of the rain, and grab a beverage.

"We waited for around 10 minutes in the pouring rain on the court," Djokovic said, "so I felt there's something I should do and make a new friend. He accepted the offer to sit down, which I didn't think he would do. So he's a very spontaneous little boy, and I hope I see him my next match."

Tennis! Where basic human decency makes you a fan favorite.