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J.J. Watt is widely regarded as the best defensive player in the NFL.

The Houston Texans star, who boasts three NFL Defensive Player of the Year Awards, is an absolute wrecking ball on the gridiron.

Although Watt is well-known for his grueling workouts and outstanding physical preparation, how might he fare at a different kind of training?

Watt went with his father, a retired firefighter, to go through firefighter training in their hometown of Pewaukee, Wisconsin.

Watt was given a uniform and jumped right into the drills, pulling water hoses, climbing flights of stairs and putting out fires – all in full firefighter gear that weighed upwards of 75 pounds.

The exercise was part of a challenge on behalf of the Gatorade Beat the Heat educational campaign, which teaches young athletes the importance of heat safety and staying hydrated during the hot summer months.

After the workout, Watt had even more respect for what goes into being a firefighter.

"I respect the hell out of that," Watt said. "That's incredible."

"At the end of the day, if I screw up, I have a bad play. Theirs is life and death. To me there's no comparison. We get headlines, we're playing a game. These guys don't get the headlines, but they're the ones saving lives."

Watch Watt's firefighter training above!

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