TEMPE, Ariz. -- Arizona Cardinals running back Chris Johnson doesn't think his two fumbles in Saturday night's preseason game in Atlanta will prevent him from making Arizona's 53-man roster when cuts take place Saturday.

"I feel good," Johnson said. "I feel good."

However, neither coach Bruce Arians nor general manager Steve Keim made it certain this week that Johnson will be among the likely four running backs kept on the roster.

Arians was asked if Johnson had shown him enough to make the team. He began his answer with "yeah, yeah," but then qualified it.

"There's still a battle," Arians said. "It's going to be a tough decision for that spot."

Keim said he wouldn't criticize Johnson publically during a radio interview on Monday morning for the two fumbles but added that Johnson was "a pro's pro."

"He gets it," Keim said. "It's not just his performance in one preseason game that's going to make a difference. It's a body of work throughout camp that coach and I will look at. We'll determine the best 53 and, more importantly, who'll be active on game day."

Neither were a ringing endorsement of Johnson, who re-signed with the Cardinals on a one-year deal the day before training camp began in July.

But Johnson, who's preparing for his 10th NFL season, think he's shown enough during camp to earn one of the 53 roster spots.

"I think so," he said. "I'm getting better and better. Me running the ball never really has been the problem but I think I've shown my hands have gotten better, catching the ball better and those types of things. I think I've really done all that I can do."

As for his fumbles, Johnson said it was an anomaly. He has 17 career fumbles in nine previous seasons and never had more than three in a year.

"You can't really fumble the ball like that," he said. "It's something that's never really been an issue with me throughout my whole career, even the years I've been here it's never been an issue."

The 31-year-old Johnson, who turns 32 on Sept. 23, feels he still has the speed and burst that's helped make him a reliable option later in his career. Johnson said he paced himself at the start of camp as he worked to get himself into football shape after spending a "few" months rehabbing from groin surgery last October.

Having not gone through OTAs and minicamp, Johnson said he quickly got sore once training camp began. It was the first time he had done any football movements since getting hurt in early October. He spent the rest of camp working through the soreness, he said.

"I stayed on top of it with the treatment and continued to work through it," he said. "That's really the only way those types of injuries get better is continue to get stronger by doing those extra movements."

Johnson added: "It feels great now."