New England Patriots quarterback Tom Brady said he will be "ready to go" in Sunday's season opener despite a calf injury.

Brady was not listed on the Patriots' injury report Wednesday, but was added to the report Thursday with a calf injury.

On Friday, Brady returned to practice. He stretched and jogged in warm-ups during the open media portion of practice.

"Physically I had the day off, but I got a lot of extra film in," Brady said in an interview with Westwood One Sports radio on Thursday night. "I got a lot of mental reps in and walk-throughs and such and I'll be ready to go Sunday.

"Anything can happen for anybody between now and then, but I'm looking forward to playing Sunday."

The Patriots travel to Miami to play the Dolphins.

Brady's backup, rookie second-round pick Jimmy Garoppolo, took the first-team snaps Thursday.

Coach Bill Belichick shed no more light on Brady's injury when asked about it Friday.

"We have done what we are required to do," Belichick said. "We have listed the injury. We will continue to list it. We'll list his status based on what the requirements of the league are.

"Jimmy (Garoppolo) steps in and does it. It's no different than any other position or anything we've done before there."

Brady has been durable during most of his career. He has started all 16 Patriots regular-season game in 11 of the past 12 seasons. In 2008, he was hurt in Week 1 and lost for year.

The Patriots also re-signed quarterback McLeod Bethel-Thompson to the practice squad Thursday.