The Packers’ Aaron Rodgers, left, runs a drill before a joint practice session with the New Orleans Saints on Tuesday in Green Bay, Wis. (AP photo)

GREEN BAY, Wis. — As good as the Green Bay Packers defense looks thus far in training camp, the offense still has a way to go.

If it wasn’t already apparent by the end of the Packers’ first joint practice with the New Orleans Saints on Tuesday, reigning MVP quarterback Aaron Rodgers offered a reminder afterward.

“A lot of mental errors, a lot of pre-snap penalties,” Rodgers said. “Kind of been the theme of camp. Simple, simple plays we’re messing up.”

Both defenses were feeling good about themselves after the first of two days of joint practices between these teams, who will face off in a preseason game Friday.

Green Bay’s defense shut down a Saints offense that featured Andy Dalton and Ian Book at quarterback with Jameis Winston sidelined by a foot injury.

The Saints defense liked the way it performed as well.

“We felt like we had a good day,” Saints cornerback Marshon Lattimore said.

The Saints’ success on defense came in part because of all the penalties and mistakes made by the Packers offense.

At the start of training camp, Rodgers said the Packers’ offense might have some issues during the preseason as they adjust to the absence of two-time All-Pro receiver Davante Adams, now with the Las Vegas Raiders. The Packers shored up their receiving depth by drafting three wideouts.

Rodgers has praised each of the Packers’ young receivers the past few weeks. But as the start of the season draws closer, Rodgers noted it’s time for the miscues to stop.

“It’s unfortunately some of the same guys,” Rodgers said. “Repeat mistakes (are) a problem, so we’ve just got to clean those things up a little bit. The young guys, especially young receivers, we’ve got to be way more consistent. A lot of drops, a lot of bad route decisions, running the wrong route. We’ve got to get better in that area.”