India, Nov. 3 -- It turns out that winning 22 Grand Slam titles and a record 14 French Open trophies doesn't make putting the kids to bed any easier.

Rafael Nadal made that clear when he showed up slightly after the appointed time near 9 pm on a Monday night for a video interview from his home in Mallorca to promote his upcoming exhibition in Las Vegas.

Looking slightly frazzled, the retired tennis standout quickly apologized for being eight minutes late - because he was busy tucking in his two sons. "Sorry," Nadal said to open an interview with The Associated Press. "That's the world of being a dad."

While he no longer plays professional tennis, Nadal still travels the world representing his business interests, promoting his foundatio...