Week 8 Waiver Wire: Roy Helu and Other Injury Replacements Owners Must Add

There were several important injuries on the fantasy football front in Week 7, which means a trip to the waiver wire in Week 8 for owners in search of replacements. 

Let's breakdown the key injuries from Week 7 and who their replacements will likely be moving forward: 

Injured: Tampa Bay Buccaneers RB Earnest Graham

Replacement: RB Kregg Lumpkin

Graham tore his Achilles tendon in the Bucs loss to the Bears in London, which may signal the end of his NFL career. LeGarrette Blount remains on the shelf for Tampa Bay.

Lumpkin is next line, and he carried the ball eight times for 15 yards against Chicago on Sunday. He's worth a look in 12-man leagues for teams in need of an emergency starter.

Injured: Washington Redskins RB Tim Hightower

Replacement: RB Roy Helu

Mike Shanahan's running back wheel landed on Hightower in Week 7, but it appears as if he tore up his knee against the Panthers and will miss the season. Helu and Ryan Torain remain, but it's likely that Torain is already gone in your league.

With one less man in the running back rotation, it's only a matter of time before Helu's chance arrives.

Injured: Detroit Lions RB Jahvid Best

Replacement: RB Maurice Morris

Best is still battling a concussion—his fourth in three years—and it's likely that he won't practice again this week. If Best can't go, Maurice Morris is someone to keep your eye on. 

Morris ran for 50 yards on nine carries and caught two passes for another 13 against the Falcons. He'll sacrifice goal-line carries to Keiland Williams, but there is some potential here if the Lions get a grip on their offense. 

Injured: Denver Broncos RB Willis McGahee

Replacement: RB Knowshon Moreno

McGahee's hand injury initially wasn't believed to be serious, but we learned after the Broncos comeback win that the hand was in fact broken. A timetable hasn't been set for McGahee's return, but it'd be wise to pick up Moreno from the waiver wire if he's still available.

With Tim Tebow continuing to start in Denver, the run game is always going to be option No. 1.

Injured: Washington Redskins WR Santana Moss

Replacement: WR Anthony Armstrong

Moss also broke his hand on Sunday, and it's an injury that could take more than a month to fully heal. With Moss on the sidelines, Anthony Armstrong could re-establish himself as a go-to guy for the Redskins. The quarterback situation is dicey in Washington, but Armstrong can make big plays down the field.