Fantasy football: Colts' Andrew Luck might be a good selection as a backup QB

QUARTERBACKS

Moving Up: Leading the Falcons' up-tempo scheme, Matt Ryan can target two elite receivers ... Since the Ravens are expected to air it out more, Joe Flacco is a borderline top 12 quarterback ... Andrew Luck has gone from late-round sleeper to intriguing fantasy backup.

Sliding down: Even though Andy Dalton played well as a rookie, a safer pick for your backup QB is Carson Palmer ... At best a late-round flyer, Matt Flynn is being outplayed by Russell Wilson in Seattle.

Injury update: All signs are Michael Vick will be ready for the opener. But if you take Vick, make sure to grab a dependable backup.

Late round sleepers: Blaine Gabbert looks much improved ... Jake Locker might be worth a flyer ... John Skelton most likely will win the starting job in Arizona.

RUNNING BACKS

Moving Up: Looking like the Chris Johnson of old, CJ2K is a safe top five pick ... Pulled off the physically unable to perform list, Rashard Mendenhall won't return until October but might miss only three or four games ... Rookie Doug Martin has a stranglehold on the starting job in Tampa Bay ... Stevan Ridley is inching closer to being a top 25 running back ... Veteran Cedric Benson might have some late-round value in Green Bay since the Packers lack a bona fide starter.

Sliding down: Until he signs, Maurice Jones-Drew carries some risk ... In the Falcons' new-look offense, Michael Turner no longer is a top 12 back ... The way Miami coaches are talking, Reggie Bush won't approach last year's career high 216 carries ... Beanie Wells' chronic knee injury makes him a risky pick ... Isaac Redman (see Mendenhall) might not be draftable.

Injury update: Despite not playing in preseason Adrian Peterson could be a second-round bargain if he slides ... Ryan Matthews suffered a broken collarbone but vows to be ready for Week 1 ... Trent Richardson underwent arthroscopic knee surgery but should be ready for the opener ... Brandon Jacobs was at best a goal-line TD option. Jacobs (knee) might not be ready for the Sept. 9 opener.