Updated running back rankings

With the news that Cardinals rookie running back Ryan Williams is out for the season with a patellar tendon tear, Beanie Wells gets a bump up to RB2. Wells has a history of injuries, but will get a lot of touches. Look for the Cardinals to add another running back.

Rankings based on PPR leagues.

1. Arian Foster (Texans)
2. Ray Rice (Ravens)
3. Jamaal Charles (Chiefs)
4. Adrian Peterson (Vikings)
5. Chris Johnson (Titans)
6. LeSean McCoy (Eagles)
7. Rashard Mendenhall (Steelers)
8. Maurice Jones-Drew (Jaguars)
9. Darren McFadden (Raiders)
10. Matt Forte (Bears)
11. Frank Gore (49ers)
12. Steven Jackson (Rams)
13. Peyton Hillis (Browns)
14. Jahvid Best (Lions)
15. Michael Turner (Falcons)
16. Ahmad Bradshaw (Giants)
17. Felix Jones (Cowboys)
18. Mark Ingram (Saints)
19. LeGarrette Blount (Rays)
20. DeAngelo Williams (Panthers)
21. Shonn Greene (Jets)
22. Ryan Mathews (Chargers)
23. Knowshon Moreno (Broncos)
24. Beanie Wells (Cardinals)
25. Fred Jackson (Bills)
26. Marshawn Lynch (Seahawks)
27. Cedric Benson (Bengals)
28. Jonathan Stewart (Panthers)
29. Ryan Grant (Packers)
30. Joseph Addai (Colts)
31. Mike Tolbert (Chargers)
32. Brandon Jacobs (Giants)
33. Daniel Thomas (Dolphins)
34. Tim Hightower (Redskins)
35. Reggie Bush (Dolphins)
36. Willis McGahee (Broncos)
37. C.J. Spiller (Bills)
38. BenJarvus Green-Ellis (Patriots)
39. James Starks (Packers)
40. Rashad Jennings (Jaguars)
41. Michael Bush (Raiders)
42. Pierre Thomas (Saints)
43. Darren Sproles (Saints)
44. Delone Carter (Colts)
45. Jason Snelling (Falcons)
46. Thomas Jones (Chiefs)
47. LaDainian Tomlinson (Jets)
48. DeMarco Murray (Cowboys)
49. Ryan Torain (Redskins)
50. Bernard Scott (Bengals)
51. Jerome Harrison (Lions)
52. Ronnie Brown (Eagles)
53. Justin Forsett (Seahawks)
54. Danny Woodhead (Patriots)
55. Jacquizz Rodgers (Falcons)
56. Montario Hardesty (Browns)
57. Javon Ringer (Titans)
58. Ricky Williams (Ravens)
59. Marion Barber (Bears)
60. Kendall Hunter (49ers)
61. Roy Helu (Redskins)
62. Mike Goodson (Panthers)
63. Tashard Choice (Cowboys)
64. Derrick Ward (Texans)
65. Stevan Ridley (Patriots)
66. Shane Vereen (Patriots)
67. Cadillac Williams (Rams)
68. Taiwan Jones (Raiders)
69. Toby Gerhart (Vikings)
70. LaRod-Stephens Howling (Cardinals)
71. Brandon Jackson (Browns)
72. Isaac Redman (Steelers)
73. Donald Brown (Colts)
74. Leon Washington (Seahawks)
75. Bilal Powell (Jets)