Olympic athlete Michelle Jenneke sparks controversy over her breasts

One track and field superstar is attracting attention at the Rio Olympics for something other than her skills.

Do you remember Michelle Jenneke?

SEE MORE: Everything you need to know about the Summer Olympics

She's the Australian hurdler who went viral at the World Junior Championships in 2012 -- and stole everyone's hearts -- over her adorable warm-up dance.

The 23-year-old athlete is making headlines again, but this time for an eyebrow-raising reason.

Some Instagram users are calling out the brunette beauty over her noticeably perky assets, alleging that she has had some work done.

"Boob job for sure there's no way that it's a push up bra," a critic wrote.

Another also put their two cents in: "Surely she's had help there?"

See Michelle Jenneke's hottest Instagram snaps:

But one user came to the Aussie athlete's defense, saying her ample cleavage is due to her sports bra.

"When guys don't know how sports bras or bras in general work lol."

While Jenneke has remained tight lipped about the matter, this may be nothing new to her. She has gained notoriety since she broke into the scene in 2012 for her looks. The track star was even dubbed the Anna Kournikova of the Rio Olympics.

But come on ... this boob controversy is probably the last thing on Jenneke's mind. It's game time for the athlete as her journey to Olympic gold begins on Tuesday in the first round of the women's 100-meter hurdles.

UPDATE:

Michelle Jenneke finished in 37th place with a time of 13.26 seconds in the first round of the women's 100-meter hurdles. She did not qualify to move on to the next round, ending her bid for Olympic gold.

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