RENTON, Wash. (AP) — There's no questioning C.J. Prosise's talent, only his ability to remain on the football field.

The third-year running back for the Seattle Seahawks has been plagued by injuries throughout his first two years in the NFL. From serious ailments like a fractured scapula, broken wrist bone and high-ankle sprains to more minor ones like groin, hamstring and hip strains, Prosise has been sidelined constantly.

With Chris Carson back from injury himself and Seattle using their first-round pick on San Diego State back Rashaad Penny, there is an urgency for Prosise to be able to stay healthy and contribute regularly this season.

Prosise spent the offseason trying to get physically ready to make the most of what could be a final opportunity with Seattle.

"I feel like I'm in the best shape of my life," Prosise said. "I feel like I can do anything on the field. I feel 100 percent and ready to go so I'm excited for this camp. We play a physical game and injuries happen and you can't avoid it. This offseason was geared around getting my body prepared to take the punishment that my body needs to take and so my body is in that position to do that now. So I'm ready to play."

Prosise buckled down with a personal trainer this offseason and was focused on putting himself in a position to withstand the types of injuries that had hampered him his first two seasons.

"That was a big change I made," Prosise said. "Before this I didn't put as much work as I should have been putting in. Now, I've kind of figured out my regimen. And also just getting on the field every day and working with drills, specific running back drills and stuff. For the most part hitting the weight room really hard and getting my body toned up and ready for the season is really what's helped the most."

Prosise has played in just 11 games in his two years in Seattle. But the limited action was still enough to show the type of player he can be when he's in peak form. As a rookie in his first career start, he gained 153 yards from scrimmage in a victory over a New England Patriots team that would go on to the win the Super Bowl. His ability to perform both as a runner and as a receiver out of the backfield caused fits for the Patriots defense.

A week later, Prosise broke free for a 72-yard touchdown run against the Philadelphia Eagles. Then Prosise was sidelined when he broke his shoulder blade late in the first half and missed the rest of the season.

A pair of high-ankle sprains held him to just five games played a year ago as well.

Maybe it's the same tease he's provided in his first two camps with Seattle but Prosise is again drawing praise in the early stages of training camp.

"I'm so fired up for him," head coach Pete Carroll said. "He's always been such a terrific potential guy and he has just not been able to stay healthy. He's leaner and stronger. He just is more fit, which screams at how hard he worked and how important this is to him. Couldn't send a better message."

The old adage that your greatest ability is your availability couldn't be more apt when it comes to Prosise. All of his potential will go unrealized if he's not available on Sundays due to injuries. But as Seattle tries to right a rushing attack that managed just one rushing touchdown from the running back position all last season, having an athlete like Prosise at its disposal would be welcome.

NOTES: LB Joshua Perry, who announced his retirement from the NFL earlier this week due to concussions, told NBC's "Today Show" on Thursday that he believes the NFL is doing enough when it comes to concussions. "I think the hardest part.is the research is a little bit fuzzy. I think that we do a great job in terms of the protocol that the NFL has. Coaches aren't pressuring players to get back, I think players feel their own type of pressure to be there for their teammates." Perry had a long post on social media earlier this week announcing he was stepping away after suffering a sixth concussion in the opening days of training camp. Perry was a fourth-round pick of the Chargers in 2016. He signed with Seattle in June.

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