The following three backs are must-starts for Week 5. These guys can fill in for a RB back on bye, or they can just be solid starters in their own right.
San Diego Chargers RB Ryan Mathews
Ryan Mathews is pushing out Mike Tolbert as the featured back in San Diego. Mathews is doing this by producing. He has combined for 37 carries for 178 yards in his last two game. He also has two touchdowns.
He has been slightly hampered with a toe injury, but it hasn't kept him from playing and it shouldn't keep him from playing.
This week he will be facing a Broncos' rush defense that is surprisingly 10th in rushing yards allowed, but Mathews will still get enough production to warrant starting.
Indianapolis Colts RB Joseph Addai
The Colts' offense has been horrible. This has left little reason to start Joseph Addai. He has just 189 yards on through three games.
However, he is averaging a very solid 4.8 yards per carry.
This week he will be facing a Chiefs squad that is 27th against the run. They are allowing 130 rushing yards per game.
Even more importantly, the Colts should be competitive in this game, which will give them the chance to actually run the ball.
San Francisco 49ers RB Frank Gore
Frank Gore has battled injuries and ineffectiveness this season. This has turned a player who is normally a must start into a question mark.
However, Gore thoroughly answered all questions about his health and possible struggles with ineffectiveness last week when he had a 15 carries, 127 yards and one touchdown.
Next week he will be going up against a Buccaneers rush defense that is struggling versus the run.
Through three games the Bucs are 21st in the NFL, having allowed 114 rushing yards per contest.