Dwayne 'The Rock' Johnson may be one of the most popular and highest-paid actors out there right now, but he will always be remembered as a wrestling icon.

The Fast and Furious star made quite a name for himself during his spell with WWE, which saw him win the world heavyweight championship eight times, among other accomplishments.

Johnson may have retired from the ring, but he has still maintained that highly intimidating physique through immense hard work and discipline.

He posted a picture on Instagram yesterday after leg training with the caption reading: "Completely smashed our leg training last night.

"Been very pleased (though not satisfied) with my progress in the gym, constantly fine tuning my diet and especially overlaying a wiser approach to work/life balance and mindfulness. 

"S*** is hard to do, with a million people & things pulling at you every day - I get it, I live it and I understand. Do your best to block out the noise and stay focused on the goals and initiatives.

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"Make your goals a healthy obsession and then apply the strategy of consistent, daily hard work. Slow and steady always wins the long game race. Have a productive week."

JUST. LOOK. AT. THOSE. LEGS!

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You look at the size of Johnson's legs and then the part of the caption where he says "not satisfied,' and it makes you wonder how ginormous his legs could be if he was actually happy with his training.

They are already bigger than most torsos in the world, so it's mind-blowing to think he's not happy with what he sees!

Nonetheless, it just goes to show what can be achieved with a bit of hard work, discipline and determination... or in The Rock's case, a lot of hard work, discipline and determination.

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ENTER GIVEAWAY

Johnson already has a number of upcoming film projects, including the action comedy Red Notice, which is in post-production and is scheduled to be released next month.

The movie also stars Ryan Reynolds and Gal Gadot.