Dwayne johnson shows off his insanely ripped quads while training for black adam movie

Dwayne "The Rock" Johnson doesn't mess with leg day. On Wednesday, the actor, 48, posted a jaw-dropping photo of himself hitting the gym while training for his upcoming

superhero role in _Black Adam_. In the Instagram post, Johnson is seen wearing a sweat-soaked long sleeved shirt and short shorts that show off his extremely muscular quads. The _Jumanji

_star is also holding on to a heavy metal chain that seems to be part of his intense workout regimen. "Black Adam ready⚡️⛓ It's always the work we quietly put in when no one is

watching that changes the game," the famously toned actor captioned the photo. "Grateful for the grind. (and the face of my Warrior Spirit always watching my back 🙏🏾💪🏾)," he

added, including the hashtags "Black Adam," "DC Universe" and "Change The Game." Johnson also revealed that production on the DC superhero film is set to kick

off this week. Many of Johnson's famous friends commented on the photo in awe of his ripped physique. "Leg day 💪🏻💪🏻💪🏻," wrote Lindsey Vonn while bodybuilder Kai Greene added,

"💪🏾💪🏾💪🏾" "BEAST MODE BROTHA💪🏽💪🏽," singer Naz Tokio replied, while actor Frank Grillo said, "You should just compete in the Olympia bro" Bodybuilder Phil Heath

also commented, "Now this is what I'm talking about!!!! 🔥💪🏽💪🏽💪🏽" Last month, Johnson revealed on Instagram that _Black Adam _will be released on July 29, 2022, nearly one year

after the film was originally supposed to premiere. While the plot of the film is under wraps, Johnson's Black Adam is the anti-hero of the film. The character first appeared in DC

comics in the 1940s, starting off as a power-hungry villain until he slowly became an anti-hero by the 2000s. _NEVER MISS A STORY — SIGN UP FOR__ _PEOPLE_'S FREE WEEKLY NEWSLETTER__ TO

GET THE BIGGEST NEWS OF THE WEEK DELIVERED TO YOUR INBOX EVERY FRIDAY._ The actor also shared a video on Instagram last month in which he revealed what he eats for breakfast to prepare for

the role. The breakfast includes whole eggs and egg whites, beef tenderloin, oatmeal and blueberries, as well as gluten-free Ezekiel English muffins and Smart Balance butter, with some

Stevia and cinnamon added for extra sweetness. Johnson said that the role requires "strength, conditioning, character and story study," but also a well-planned diet, which he

described as "the most important thing."