Al Harris’ T-shirt says it all: “For those who doubt what God can do, I am PROOF.”

It’s week 9 in Harris’ exclusive video diary for the National Football Post, and the rehabilitation exercises are no easier. The Packers cornerback is put through his usual excruciating workout on the training table at the Atlantic Rehabilitation Center in Miami, and you can feel his pain.

But he plunges forward. His trainer is looking for 135-degree flexion in Harris’ left knee; he’s currently at 128 degrees. So he’s not there yet.

Harris’ determination remains steadfast. He knows there are doubters who don’t believe he can come back, but he plans on proving them wrong.

“I am proof,” he says.

Click HERE to check out Part VII

Click HERE to check out Part VI

Click HERE to check out Part V

Click HERE to check out Part IV

Click HERE to check out Part III

Click HERE to check out Part II

Click HERE to check out Part I