Watch Dallas Cowboys Vs. New Orleans Saints Live Online: NFL Sunday Night Football, Week 4 Streaming

Watch NFL Sunday Night Football live online when the injury-depleted Dallas Cowboys hit the road for New Orleans to face the winless Saints, who hope the return of injured star quarterback Drew Brees will finally get the season started for the 2009 Super Bowl Champions, who at least would like to avoid their second losing season in a row after winning 11 or more in four of the previous five years.

But while the 36-year-old Brees is expected to make the start on Sunday night against the Cowboys, Dallas quarterback Tony Romo is sidelined until at least Week 11 with a broken collarbone. The Cowboys are also still without the services of top wide receiver Dez Bryant.

Bryant broke his foot in the Cowboys' first game of the season and may be out for the remainder.

The Cowboys recently made a trade to acquire veteran journeyman signal-caller Matt Cassel, but are nonetheless expected to stick with Romo's original backup, Brandon Weeden — even though dating back to 2012, the 31-year-old, originally drafted 22nd overall that year by the Cleveland Browns, has lost nine straight starts and thrown 29 interceptions against only 27 touchdowns.

Dallas Cowboys New Orleans Saints Brandon Weeden
Backup Dallas Cowboys quarterback Brandon Weeden (left) with injured starter Tony Romo

Weeden threw another pick last week as the Cowboys fell to the Atlanta Falcons 39-28, though the fill-in starter did complete 22 or 26 pass attempts for 232 yards.

The Saints also went with a backup quarterback in their Week 3 loss to the Carolina Panthers, and Luke McCown put on a solid performance, hitting on 31 of 38 passes for 310 yards with one pass picked off. But the Saints suffered a defensive collapse in the second half, surrendering 17 straight points to blow a six-point third-quarter lead and lose 27-16.

To find out how to watch the Dallas Cowboys vs. New Orleans Saints NFL Sunday Night Football game live online, see the streaming info in the final paragraph of this article. Kickoff is set for 8:30 p.m. Eastern Time at the New Orleans Mercedes-Benz Superdome in New Orleans, Louisiana, 5:30 Pacific Time.

''We can't go play this game quick enough and because, listen, there is that sense of urgency to get a win,'' Saints Head Coach Sean Payton said on Friday, reflecting on his team's winless start to the 2015 NFL season. "It's certainly a hole. There is no way to sugarcoat that."

Las Vegas oddsmakers installed the Saints as four-point favorites at home — but that was before Payton announced that he expected Brees to start the game.

Dallas Cowboys New Orleans Saints Drew Brees
New Orleans Saints quarterback Drew Brees is expected to return to the lineup Sunday

"I think we're planning on starting him based on the workweek and the reps," Payton told ESPN on Friday. "He's thrown well. I thought he looked sharp today."

The Cowboys and Saints first faced each other on October 15, 1967, the first season of the Saints' existence. Dallas won that meeting and in fact, the Saints won just once in the teams' first 12 games.

But the tables have turned recently. Though Dallas won last season's showdown between the two rivals, 38-17, New Orleans has dominated the Cowboys going back to 1998, winning eight of 10 meetings.

Will the return of Drew Brees finally let New Orleans enter the win column? Or will the depleted Cowboys find a way to win without their star quarterback and top receiver? To find out, watch the Dallas Cowboys vs. New Orleans Saints NFL 2015 Sunday Night Football matchup live online, via NBC Sports Live Extra, by clicking on this link. Streaming video of the Cowboys vs. Saints will also be available on mobile devices by downloading the NBC Sports Live Extra app, as well as on set-top devices such as the Roku and Apple TV.

[Images: Tom Pennington / Ronald Martinez / Getty Images]