PHILADELPHIA (CBS) -- Joel Embiid was caught playing tennis at the park on 25th and Pine Street earlier this week.

When asked about his tennis game, Embiid responded perfect.

"It's really good. I'm a really good server," Embiid said. "They call me the black Roger Federer."

Federer, 36, has won 19 Grand Slam singles -- the most ever for a male tennis player. But, with Embiid looming, that record does not appear safe.