If you drafted Steven Jackson, we can only hope you had a backup plan in mind.

Ditto for Marques Colston.

Let's play the waiver-wire game, and hope Jackson doesn't stub his toe on the way to the trainer's room this week.

1. Devery Henderson, WR, Saints (owned in 15.1 percent of the leagues on ESPN.com): We believe he's the best available free agent this week (unless you play in a very shallow league) because of injuries to Colston and Lance Moore. Colston is expected to miss four weeks because of a broken collarbone, and Moore sat last week with a groin injury. Henderson had six receptions for 100 yards and a touchdown on Thursday at Green Bay. It was his first 100-yard game since 2009 and he has only 18 TDs in 93 career games, so don't get too excited if he's available. But he is capable of making a big play (Henderson's career average is 18.6 yards per catch), and Drew Brees has to throw to a wideout other than Robert Meachem.

2. Cadillac Williams, RB, Rams (14.3 percent): Jackson strained his quad on his opening carry of the season -- a 47-yard touchdown run -- leading to a flashback game from Williams. The Cadillac, who hasn't averaged more than 3.9 yards per carry in a season since his 1,178-yard rookie year (2005), had 19 carries for 91 yards and five catches for 49 yards last week. With Jackson out at least this week, Williams will be the Rams' primary back Monday against the Giants.

3. Dustin Keller, TE, Jets (40.8 percent): He had five catches for 61 yards and a TD last week. Keller is underrated after a productive 2010 (55 receptions for 687 yards and five scores) and should be considered a lower-level starting tight end in a 12-team league.

Five other possible free agents of note:

-- Ryan Fitzpatrick, QB, Bills (41.9 percent): We ranked him as the top Peyton Manning replacement option last week, and all Fitzpatrick did Sunday was throw for 208 yards and four TDs at Kansas City. That gives him 27 TDs and 15 interceptions in 14 games dating to the start of 2010.

-- Aaron Hernandez, TE, Patriots (35.1 percent): We like Rob Gronkowski better, and Tom Brady might, too, but when the Pats throw for 517 yards, there are plenty of catches to go around. Hernandez had seven receptions for 103 yards and a TD on Monday night, slightly better than Gronkowski's six catches for 86 yards and a score. Both are quality starting options, and both are better than Chad Ochocinco, who had all of one catch in his New England debut.

-- Ben Tate, RB, Texans (33.5 percent): If you own Arian Foster, we're assuming you already have Tate. If not, it might be too late after the latter rushed for 116 yards and a TD on 24 carries against the Colts. Derrick Ward, who was expected to split the carries last week with Foster out, sprained his ankle, allowing Tate to show he can be a featured back. Foster might return this week, and if he does, Tate is a fantasy reserve. Regardless, he's a must-have for anyone who invested a first-round pick on Foster.

-- Nate Burleson, WR, Lions (18.7 percent): He had five catches for 60 yards last week and caught 55 passes for 625 yards and six TDs in 2010. If Matthew Stafford can stay healthy, Burleson should be productive enough to consider a low-end No. 3 fantasy receiver.

-- Jermaine Gresham, TE, Bengals (8.4 percent): Is it me, or are there more quality tight ends than ever before (no jokes please)? Greshman had six receptions for 58 yards and a TD last week, and he caught 52 passes as a rookie last season.