This billiards player is a mom who has definitely stayed in shape. Who knew billiards could be such a good workout!

Who is this fit pool shark?

This swimmer is a seven-time Olympic medalist. All those hours in the pool paid off in the form of a toned bod.

Guess this swimmer with winning form.

Many of this quarterback's attributes captivate the public - his hair, his endorsements - but his chiseled arms and abs still rank No. 1 (see photos of his supermodel wife).

Who is this fit football star?

The spotlight has been on this running back since his college days. With all his muscles, the attention is well-deserved (which reality star did he date?).

Who is this athlete?

With MMA's increasing popularity, this fighter's profile has risen recently, but you may remember her from "American Gladiators" (watch her on the show).

Guess who's in fighting form?

This NBA player is a defensive presence in the paint (which team does he play for now?). Perhaps opponents are wary to challenge someone of his stature.

Who is this NBA defender?

To play the part of Superman, this NBA center wouldn't need any help. He brings his own six-pack to the table (which "Basketball Wives" star did he date?).

Who is this Superman athlete?

This track and field star is known by her nickname. After this summer's Olympic Games, she's also hoping to be known as an Olympic medalist.

Who is this Olympic-bound athlete?

This soccer player isn't the only player on this list receiving notoriety for a toned physique ... and lots of tattoos (what TV show was she featured on?).

Who is she?

The athletic genes are strong in this hurdler's family. Her father is a four-time Stanley Cup champion hockey player (who?), and her twin sister is a world-class hurdler as well (see photos).

Guess this hurdler.

This guy is definitely a swimmer to watch in London this summer. He'll only be wearing swim trunks, so ladies can sneak a peek at his washboard stomach (who is his biggest rival?).

Who is this swimming standout?

No doubt the ladies in North Carolina were excited when this chiseled NFL star came to town (which singer was he rumored to be dating?).

Who is the NFL hunk?

This WNBA player's physique is just as impressive as it was before she became a mother (who is her NBA player brother?).

Guess this WNBA player?

There's a lot to love about this Olympic champion. He's won 16 Olympic medals. He loves his family. He's also got the ultimate swimmer's bod.

Who is this superstar swimmer?

If the muscular build wasn't enough to prove this Portuguese soccer player's hotness -- the bevy of models he's dated is certainly evidence enough (which tennis pro did he date?).

Who is this soccer hottie?

This NFL player's smile and charm definitely had him ready for primetime ... and he fits perfectly with his NY team (which actress was he linked to?).

Guess this NFL charmer.

If anyone didn't know this hard-bodied goaltender from the US women's soccer team after the 2010 World Cup, they were definitely exposed after her 2011 "Dancing with the Stars" stint.

Guess this dancing goaltender.

This five-time Olympic swimming competitor made her Olympic debut in 1984 and medaled in each of the five Olympic Games she has competed in.

Who is this ageless competitor?

This tennis player has set a new standard for ladies. Waif is long gone ... muscles are in (who is her rapper-turned-actor ex?).

Who is she?

This tennis champion keeps her body in peak condition. No doubt that helped her win her most recent title (whom did she defeat?).

Guess this title winner

Sure, a lot of women have a thing for bad boys, but this Yankees star is the type you want to take home to mother. He's never been involved in controversy, he's the consummate teammate and he's never spoken ill of his ex-girlfriends (which actress is one of them?). Those muscles don't hurt either.

Who is this Yankees superstar?

The 6-2, 230-pound fan favorite is totally single (who is ex?). Not convinced? Ahem. Just take a look at his body ... of charity work, of course - like the group he started to benefit L.A. youth. Let's add it up: solid play + tough mug + soft heart = heartbreaker worthy of our adoration. Now there's some appealing math.

Who is this heartthrob hottie?

This tough girl is one of the most recognizable racers in the world, due to both her accomplishments on the track and her ad campaigns (watch videos) and appearances off it. She remains one of NASCAR's hottest drivers.

Guess this racing champ.

It was especially important for this baller to keep his body in shape this season. His fitness is one reason why his team made a run to the NBA Finals (which team does he play for?).

Who is he?

This new Raider is returning to California and should help recruit more ladies into Raider Nation (what chick-flick did he appear in?).

Who is this Raiders hottie?

Golfer Adam Scott's girlfriend was ranked in the top five female tennis players worldwide by the WTA in 2007, and in 2008, she became the first Serbian female player to win a Grand Slam singles title after she won the French Open.

Who is this former WTA standout?

This footballer has been known for his incredible physique for years. Recently, that bod earned him a spot on the cover of one of the most popular women's magazines (what band was his wife in?).

Who is he?