Arizona Cardinals running back Chris Johnson couldn’t finish last season after breaking his tibia in Week 11 against the San Francisco 49ers. But Johnson has been training during this off-season and he’s looking good. CJ2K recently posted one of his speed workouts on social media, and it’s clear that he’s training to come back faster than ever.

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Last year, Johnson had a bounce-back season. He rushed for 814 yards and three touchdowns in only 11 games. During the 2014 season, he played in all 16 games for the New York Giants and totaled 663 rushing yards and one touchdown.

But Johnson won’t let his injury slow him down.

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In the videos below, you can see Johnson performing Parachute Sprints with not one, but two parachutes. When you sprint with a parachute, the air catching in the chutes provides resistance, forcing you to generate more force in your hips and legs. Johnson will become faster and stronger as he fights the resistance.

[instagram src=”https://www.instagram.com/p/BH0EBN9DmgL/?taken-by=chrisjohnsontwo8&hl=en”] [instagram src=”https://www.instagram.com/p/BH0D3gsDr-a/?taken-by=chrisjohnsontwo8&hl=en”]

Johnson is already one of the fastest guys in football. He holds the official NFL Combine record in the 40-Yard Dash with a time of 4.24 seconds. If you want to become as fast as Johnson, go out and find a couple of parachutes.