Patrick Peterson was diagnosed with diabetes last season and lowering his sugar intake was one of the most significant byproducts.

"Being as lean as I am and being a world-class athlete, you think you can get away with a lot of things," Peterson said. "And at some point in time, your body is definitely the temple and you have to make sure that you have to listen to your body. So, at this point in time, my body was like 'no more sweets,' and [you] have to put it down and slow down a little bit, so that's what it has to be."

Peterson, 24, said he was diagnosed around Week 7 last season, when Arizona played at Oakland on Oct. 19.

Peterson learned diabetes could be life threatening if it's not treated carefully.

"Talking to them definitely got me through it," he said.

Peterson called the period when he didn't know what was affecting him "very tough." It also showed on the field. Peterson allowed four of his eight touchdowns in the first seven weeks, according to Pro Football Focus.

"I'm looking at it ... I'm a world class athlete and I can't figure out what's going on with my body," he said.

More than eight months after his diagnosis, Peterson said "everything's going well right now."

Carson Palmer believes he's 100 percent recovered from tearing his ACL last season in Week 10.

"I'm ready. I'm excited. I'm 100 percent. I'm cleared," Palmer told ESPN's Josh Weinfuss on Monday. "I can do everything. I've tested out. Gotten stronger every week, every month, just ready to get going."

Palmer said he "actually was cleared weeks ago," but despite his lobbying, coach Bruce Arians and the training staff took a cautious approach to their starting quarterback.

Palmer is now 35 and is entering his third season with the Arizona Cardinals.

The Arizona Cardinals have signed Frostee Rucker to a one-year extension.

Financial terms of the extension were not available, but Rucker earned $1 million last season and was scheduled to make $1.1 million in 2015.

Rucker went from being a role player on the Cardinals' defensive line in 2013 to a starter in 2014 after replacing Darnell Dockett, who missed the season with an ACL injury. In 15 games, Rucker had a career-high five sacks, 24 tackles and two forced fumbles.