Jennifer Hudson's three-year-old son is nursing a broken leg after injuring himself during a play session. The Dreamgirls star reveals little David, Jr. was trying to slide down a friend's legs when he got hurt and the tot fears he will never be able to get back on his feet again. She tells U.S. talk show host Jimmy Kimmel, "My little munchkin - he broke his leg sliding down the slide. They say the number one way children break their legs is by sliding down on someone's lap. So don't let your kids do that! We learned the hard way... "He's like, 'Mummy, what's going to happen with my bad leg? Will I be able to wrestle again? Can I ride my bike?' He doesn't really understand."