AP

The Cardinals might not be sure if Tyrann Mathieu is going to be ready for training camp, but he seems more confident.

The second-year safety suffered a torn ACL and LCL last December, and the Cards are planning as if he’ll start the year on the physically unable to perform list.

But he just gave an update on his rehabilitation via Twitter, saying he did lateral movements, ran 50 yards and backpedaled for the first time.

“I must say I feel damn good,” he wrote.

For lack of a better word, that’s a damn good sign for the Cardinals. He was a revelation on the field for them before his injury, an immediate contributor to a good defense.

Being ready for the start of training camp would be nice, but having him healthy for the regular season would be much better.