Karl Stefanovic looks winded at a Sydney gym as his celebrity trainer whips him into shape 

He’ll huff and he’ll puff! Former Today show host Karl Stefanovic endures a hard session at a Sydney gym as his celebrity trainer whips him into shape

He vowed to whip himself into shape for his wedding last year. 

And it seems Karl Stefanovic was back on his wellness kick on Tuesday, as he worked out in a Sydney gym. 

The 45-year-old was really putting in some grunt as he worked out with celebrity trainer Chief Brabon.

Gun show! Former Today host Karl Stefanovic (pictured) endured a hard session at a Sydney gym with his celebrity trainer on Tuesday 

The former Today show host showed off his guns in a black T-shirt with rolled up sleeves.  

He paired the always-fashionable men’s wardrobe staple with a pair of dark blue shorts covered in adorable little love hearts. 

A series of wrist cuffs added a trendy touch to the otherwise casual outfit.  

Casual: Karl opted for a simple black T-shirt for the session and surveyed the gym

Casual: Karl opted for a simple black T-shirt for the session and surveyed the gym 

Work it! The 45-year-old worked out with celebrity trainer Chief Brabon (left)

Work it! The 45-year-old worked out with celebrity trainer Chief Brabon (left) 

Casual: He wore a pair of dark blue shorts covered in adorable little love hearts

Casual: He wore a pair of dark blue shorts covered in adorable little love hearts

At one point, the TV star appeared to be out of breath when his trainer made him run on a treadmill.

After the running session ended, Karl looked decidedly pleased with himself.   

The popular media identity even lifted up his T-shirt for a welcome breeze on more than one occasion. 

Run rabbit run! At one point, the TV star appeared to be out of breath when his trainer made him run on a treadmill

Run rabbit run! At one point, the TV star appeared to be out of breath when his trainer made him run on a treadmill

Do it son! Karl's celebrity trainer Chief Brabon didn't spare him one bit

Do it son! Karl’s celebrity trainer Chief Brabon didn’t spare him one bit

Catch your breath! The TV star appeared be winded at some points

Catch your breath! The TV star appeared be winded at some points 

Strong man: The This Time Next Year host really went hard during the session

Strong man: The This Time Next Year host really went hard during the session

Karl often paused between workouts, appearing to catch his breath.

He also laughed on several occasions, no doubts pleased by how well he’d done during the session. 

Chatting with his trainer, Karl looked relaxed and happy despite the hard workout.     

Before marrying new wife Jasmine Yarbrough in Mexico last December, Karl said he was busy ‘shedding for the wedding’.  

Knows his fashion! A pair of studded cuffs on his wrist added a trendy touch to the otherwise casual outfit

Knows his fashion! A pair of studded cuffs on his wrist added a trendy touch to the otherwise casual outfit

Last few rounds! Karl stuck to his guns as he finished his workout

Last few rounds! Karl stuck to his guns as he finished his workout 

Good work! He then laughed, perhaps pleased by how well he'd done during the session

Good work! He then laughed, perhaps pleased by how well he’d done during the session

In November last year, just a month before their wedding, Karl took to Instagram to share a snap of himself looking buff as he worked out at the gym.

He reflected on his fitness journey, admitting that he was ‘fatter than I thought’.  

‘I was told a little while ago by a doctor I needed to make some changes to my physical health. It’s been tough. I was fatter than I thought. Ha. But I’m getting there. Slowly,’ Karl wrote.

He then thanked his trainers for ‘making me bleed’. 

On top of it: In the past, Karl has thanked his trainers for 'making me bleed'

On top of it: In the past, Karl has thanked his trainers for ‘making me bleed’

 

 

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