(Photo: AP Images / Winslow Townson)Pittsburgh Steelers quarterback Ben Roethlisberger, left, talks to Arizona Cardinals quarterback Kurt Warner after the Steelers beat the Cardinals 27-23 in the NFL Super Bowl XLIII football game, Sunday, Feb. 1, 2009, in Tampa, Fla.

Pittsburgh Steelers vs Cincinnati Bengals is the big Sunday Night Football game tonight, and is a vital clash for both AFC North teams. The game will start at 8.20 p.m. ET and can be watched online through free live stream (details below).

The Steelers come into this game with a 2-3 record and have not yet been able to maintain any consistency at all so far this season. Through their five games they have alternated between winning and losing in each game, and if that continues tonight they are due another win.

The Bengals meanwhile got off to a good start through Week 4, coming out with a 3-1 record early on. However, two consecutive defeats see them come into this tie with a 3-3 record and balancing on .500.

The Bengals have gone off the boil, and have surprisingly lost to both the Miami Dolphins and the Cleveland Browns over the past fortnight.

Both teams will be looking at this game as a must-win, and for one of the teams that loses, it could be a major setback at this pivotal point in the regular season.

Week 6 was hard to watch for the Steelers, and they struggled terribly in trying to run the ball in offense. Against the Titans they averaged just 2.5 yards per attempt over 22 carries - that's just 56 yards in total through the game. When you also realize that 14 yards came from Ben Roethlisberger in a single carry, the situation looks even more dire for the Steelers' rush offense.

That performance sees the Steelers drop to 31st in the NFL in the rush rankings. They are averaging just 74.8 yards rush per game. Put simply, it is just not good enough. They will have to conduct some major restructuring tonight if they are to turn things around in that department.

Pittsburgh Steelers vs Cincinnati Bengals is scheduled to start at 8.20 p.m. ET and can be watched online through free live stream by clicking here.