The quarterback position continues to be a merry-go-round for several teams heading into Week 10 of the NFL season.
The Buffalo Bills welcome back their electrifying rookie signal caller, while the Green Bay Packers face their first full game without their starting QB. Other teams face shortages at key positions - including the Seahawks, who are still waiting for their prized free-agent acquisition to make his Seattle debut.
Here are five key injuries entering a busy Sunday:
Percy Harvin, WR, Seattle Seahawks (out, hip)
The hype over Harvin possibly returning in Week 7 or 8 has given way to a more realistic assessment. After suffering a minor setback in his return from a major offseason hip injury, the 25-year-old still hasn't been added to the Seattle roster and isn't practicing with the team yet. As badly as Harvin might like to return for the Seahawks' Week 11 tilt with his old team, the Minnesota Vikings, it's likely the speedy wideout will remain on the sidelines beyond the team's Week 12 bye with an eye on returning the following week against New Orleans.
Seattle is installed as a 4-point favorite for Sunday's showdown with host Atlanta. The total is 45.
Aaron Rodgers, QB, Green Bay Packers (out, collarbone)
The Packers' postseason hopes took a major hit after Rodgers suffered a fractured collarbone in Monday night's 27-20 loss to the Chicago Bears. The team has placed a 4-to-6-week timetable on Rodgers' return to the lineup, though historical precedent would suggest that Rodgers probably won't be back in four weeks' time. Veteran Seneca Wallace, who went 11-for-19 for 114 yards and an interception, will be under center - and judging by the nine-point swing in this week's line, bettors don't have much faith in his abilities.
The Packers are a one-point underdog vs. the visiting Philadelphia Eagles, with the total at 47.
Arian Foster, RB, Houston Texans (out, back)
Foster won't give up on returning this season despite reports he's dealing with a significant disc problem in his back that may require surgery. The fifth-year running back is considered week-to-week, but is reportedly seeking other medical opinions in an effort to be cleared to return as soon as possible. His absence leaves a major hole in Houston's already mediocre offense, with the underwhelming Ben Tate expected to see the bulk of the carries. Dennis Johnson, signed late last month, will back him up.
The Texans go into Arizona as a 3-point underdog against the Cardinals. The total is set at 42.
Roddy White, WR, Atlanta Falcons (questionable, hamstring)
Falcons fans will be ecstatic to know that White will finally return to the field in an attempt to salvage what has been his worst season to date. The 32-year-old has been dealing with a hamstring issue that has kept him out the last three games, but he reportedly looked spry in practice and has declared himself good to go. White will instantly boost a Falcons' passing game that has been decimated by the loss of Julio Jones (foot). White's presence gives Matt Ryan another reliable option in the passing game to complement Tony Gonzalez and Harry Douglas.
Atlanta is installed as a 4-point underdog against visiting Seattle, with the total at 45.
E.J. Manuel, QB, Buffalo Bills (probable, knee)
Manuel has exceeded even the most recent timetable; despite not being expected back until next week, the first-year QB looked good in practice and will get the start Sunday barring any setbacks. Manuel hasn't played since Week 5 after suffering a sprained LCL in a 37-24 loss to the Cleveland Browns. The Bills have already used three different quarterbacks this season, so the return of Manuel not only gives them the best chance to win - it also means some much-needed stability for what has been a beleaguered pass offense.
Buffalo enters Sunday's game in Pittsburgh as a 3-point underdog, with the total set at 43.5.