FOXBORO — New Patriots offensive tackles Riley Reiff and Calvin Anderson are midway through the team’s voluntary offseason program, learning the playbook, their teammates and their place in the team’s new offense.

Even though they haven’t donned pads yet, Reiff and Anderson have separately declared they already know one thing: they love playing for new Patriots offensive line coach Adrian Klemm.

“I love AK so far,” Anderson said Thursday. “You can tell he played. You can tell he understands the positions we’re put in on the field. I always have an appreciation for guys who understand, first-hand, what it’s like to be playing.”

Klemm rejoined the Patriots in January after one year as the associate head coach and offensive line coach at the University of Oregon. He previously coached three seasons with the Steelers and spent the first 10-plus years of his coaching career in the college ranks. As a player, Klemm became the first Patriots draft pick of the Bill Belichick era in 2000.

Nowadays, Klemm is working to rebuild one of the worst offensive lines in the NFL from a year ago. Anderson and Reiff, both free-agent signings, should help.

The Patriots signed Anderson to a 2-year, $7 million contract, pulling him away from Denver where he started 12 games over the last three years as a backup. Anderson played mostly on the left side, but has experience at right tackle and said he’s honing his skills at both positions this offseason.

As for Reiff, the 34-year-old is on his fifth team, and indicated Klemm has already earned his respect this early in the process.

“It’s been great,” said Reiff. “Right now, we’re in the offseason workouts learning the playbook, learning the techniques that he wants. He’s been an awesome coach, teacher — and we’re just trying to build every day.”