This NFL is a tough business as poor play on both sides of the ball led to a disappointing Cowboys defeat.

Despite a six-game winning streak, the Cowboys came out flat against the Broncos. Just like a car, when you don't fix a flat, it can end poorly.

It's hard to pinpoint exactly what went wrong in a game that ugly, but the Cowboys said Sunday they were lacking in physicality against the Denver Broncos.

Terence Steele flipped from right tackle to left but said it was harder than he expected as the Cowboys again have problems replacing Tyron Smith.

With 2.5 sacks Sunday, Micah Parsons continued to show progress despite the Cowboys' stunning loss to Denver.

udging by the amount of running he had to do, Dak Prescott's calf held up just fine.

Plays that might get forgotten include two of the many dropped passes by the Cowboys.

The Cowboys are never able to find their rhythm on offense and fall victim to the big plays on defense in losing 30-16 to the Broncos.

What it's going to take for both the Cowboys and Broncos to get a victory on Sunday.

Here are 12 additional 'Big Facts' to note ahead of Sunday's battle with Denver at Noon CT on FOX.

Will Dak's return to the lineup help the Cowboys win seven straight? Check out this week's predictions for Cowboys-Broncos.

How things might've been different had Patrick Surtain not been drafted by the Broncos back in April.

The Dallas Cowboys (6-1) will try to extend their six-game winning streak this weekend as they play host to the Denver Broncos (4-4) for an afternoon matchup at AT&T Stadium. The game will be Sunday at 12:00 (CT) on FOX.

The Cowboys had a lot to share in their Thursday media sessions, from the team's strong chemistry to important matchups against Denver. Catch up with a full notebook.

The offensive line is expecting to have a few noticeable changes Sunday against Denver. 

Quarterback Dak Prescott says it's "safe to say" he'll play Sunday against Denver after missing one game due to a right calf strain.

Mike McCarthy had quite a few injury updates to provide heading into Sunday's game against the Denver Broncos. 

I'm obviously talking about Cooper Rush, and the fact that I think it's entirely possible he changed the trajectory of his NFL career – and therefore his life – on Sunday night at U.S. Bank Stadium in Minneapolis.

These guys for the Brocnos are the ones that give the Cowboys the most problems on Sunday.

Touching on the Cowboys' defensive effort against Minnesota, who plays left tackle, the Hulk package and a few surprising special teams backups.

The Cowboys made one simple change that might have helped Micah Parsons play the best game of his young career.

The Cowboys are having a new look in honor of the U.S. military and the National Medal of Honor recipients.

Dallas Cowboys Notebook #DENvsDAL | Week 9

The Cowboys have their own approach to building a roster, and the 6-1 start shows it's working.

The Cowboys see their highest power ranking of the year in one of the polls, getting close to the No. 1 spot.

Views of the Dallas Cowboys "Dressed for Success" as they host the Denver Broncos in a Week 9 game at AT&T Stadium, presented by Jack Black.

Views of the Week 9 matchup between the Dallas Cowboys and the Denver Broncos, at AT&T Stadium.

Views of pregame before the Week 9 matchup between the Dallas Cowboys and the Denver Broncos at AT&T Stadium.

Today we had the privilege of hosting five Medal of Honor recipients, including Major General Pat Brady at our practice at Ford Center.

Views from the Dallas Cowboys Thursday's Week 9 practice as they prepare for the Denver Broncos at Ford Center at the Star in Frisco, Texas.

Here are 12 additional 'Big Facts' to note ahead of Sunday's battle with Denver at Noon CT on FOX.

Dallas Cowboys Notebook #DENvsDAL | Week 9

The Cowboys are breaking out the red-stripe on their helmets for Sunday's game with the Broncos, in honor of the National Medal of Honor recipients.