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JOHAN SAMUEL: SWIMMING
Is he the next Ryan Lochte? Heidi Klum's laid-back 5-year-old taps into his playful side while taking a swim in Malibu on March 4.
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HONOR WARREN: CYCLING
Who wants to road race? Jessica Alba's big girl, 4, is ready to clock in some miles on her trusty tricycle during an outing last year in Beverly Hills.
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ZUMA ROSSDALE: TENNIS & WRESTLING
Testing his talent in not one but two different sports, Zuma – who turns 4 on Aug. 21 – works on his serve during a family vacation in Palm Springs, Fla., last year. More recently, he (gently) took a pal down for the count in Santa Monica, Calif., on July 14.
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SATYANA DENISOF: GYMNASTICS
Someone looks ready to join Team U.S.A! Alyson Hannigan helps her 3-year-old navigate the monkey bars during a trip to an L.A. park on March 8. Could the uneven bars be next?
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ANJA MAZUR: GYMNASTICS
Just one step at a time! The Victoria's Secret model helps her mini me – who celebrates her 4th birthday Aug. 24 – master a street-side balance beam during a March 15 mother-daughter outing in Santa Monica, Calif.
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HANK BASKETT IV: SOCCER
Football may run in the family, but Kendra Wilkinson's little sports star, 2, shows off his fancy footwork during a June 29 soccer game at a Malibu, Calif., park.
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LENI SAMUEL: JUDO
She's already got the hardware, so are the 2020 Games in her future? Heidi's 8-year-old purple belt champ shows off her trophy after a March 19 karate class in Beverly Hills.
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SAVANNAH MAHONEY: TRACK & FIELD
Who will cross the finish line first? Marcia Cross trails behind her little sprinter, 5, during a 2010 visit to a Brentwood, Calif., track.
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NAHLA AUBRY: EQUESTRIAN
She's a horse whisperer! Halle Berry's avid rider, 4, shows her poise on horseback in L.A. on July 4.