"Right now, Denver has a team built just like the New England Patriots back when they went undefeated [in the 2007 regular season],'' said Gonzalez, the former All-Pro tight end who retired after last season and is an NFL analyst for CBS.
"In looking at Denver in the preseason and Peyton Manning's command of that offense, he'll pick up right where he left off last year. And defensively, they went out like good organizations do and addressed their weaknesses.''
The Broncos went 13-3 in the regular season in 2013 before falling to the Seahawks in the Super Bowl.
"If they can stay healthy, how do you beat this team?'' Gonzalez said. "They're balanced on both sides of the ball. They can run, they can pass, they can stop the run and they can stop the pass now on a consistent basis. It's going to be very, very tough to beat them.
"You better play mistake-free football and come up with some luck plays, just like New England got beat by a luck play against the Giants in the Super Bowl. That's the only reason they got beat. If you don't have that play, it's over.''
Gonzalez, 38, retired after 17 years in the NFL and has been hired to work as an analyst for CBS in the fall.
The Broncos open the regular season Sept. 7 against the Indianapolis Colts.
- Chris Johnson