Green Bay Packers All-Pro safety Xavier McKinney is dealing with a calf injury that could take him off the field for the rest of training camp and the preseason.

McKinney, though, promised he’d “be ready when it’s time to go” for Week 1 when speaking to reporters at training camp Thursday.

“Obviously glad that we caught it when we caught it, so just kind of trying to take it slow and then the build-up, obviously,” McKinney said. “But I’ll be ready when it’s time to go, for sure.”

McKinney was a practice participant Wednesday but sat out Thursday.

“It was just something like just lingering a little bit over time, and that’s really all it really was,” McKinney said of the injury.

McKinney, 26, is coming off the best season of his NFL career, which also marked his first season in Green Bay. He started all 17 games and nabbed eight interceptions to go with 11 pass breakups, 88 tackles and one sack on his way to Pro Bowl and first-team All-Pro honors.

He spent the first four seasons of his pro career with the New York Giants before joining the Packers on a four-year, $67 million free agent deal.