Ana Ivanovic is torturing reporters. No, not with horrible quotes. That lifestyle belongs to Bill Belichick and Gregg Popovich. The tennis star is, however, giving them a taste of what her body goes through.

Something her boyfriend Bastian Schweinsteiger can use more of.

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Ivanovic -- who's thoroughly preparing for the 2016 Australian Open -- was in Melbourne to work out at the Adidas Ace Case on Thursday. Along with the No. 16th-ranked player in the world, Caroline Wozniacki (No. 17) and Andrea Petkovic (No. 24) were also in attendance.

"Being in Australia, I think people here are so fit and I really admire them," Ivanovic said, per Stuff.co.nz. "I haven't seen a nation as fit as this. Aussies, they're really into that.

"I think it's very important to stay healthy and have a healthy lifestyle. I think it's also good -- for first a long life -- but also a happy life."

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A happy and challenging life.

Ivanovic's workout, just 20 minutes long, included countless burpees, mountain climbers and "about a million different kinds of squats and push-ups," according to Harriet Pudney.

Sounds like a grueling challenge Schweinsteiger should welcome. Maybe then he won't continue to be a doubt for top matches, as he is for Manchester United's visit to Liverpool on Sunday, per the Independent.

It'll also go a long way in ensuring former managers -- you know, the legendary kind like Pep Guardiola -- don't accuse you of being unfit.

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