by Andrew Potter

Ravens Linebacker Pernell McPhee -- Triceps (IR)

Pernell McPhee's triceps injury is dire news for the Ravens linebacker -- triceps injuries that result in missed time are almost always season-enders. More than 50% of triceps injuries to linebackers cause at least one missed game, and only a tiny fraction of those players return later in the season. News from Baltimore suggests that they expect the worst, and McPhee will miss the rest of the season.

Chargers Guard Forrest Lamp -- Ankle (IR)

Forrest Lamp broke his ankle in Sunday's defeat in Tennessee, and he will miss the rest of the season. Lamp's injury returned Dan Feeney to guard, with Scott Quessenberry replacing Feeney at center.

Eagles Defensive Tackle Hassan Ridgeway -- Ankle

The Eagles believe that Hassan Ridgeway suffered a serious ankle injury against Dallas, though no specifics are yet public. They began the season with one of the league's deepest defensive line rotations, but they are enduring a plague of injuries at that position. Ridgeway is expected to miss weeks at the very least, pending the outcome of today's medical scans.

Texans Receiver Will Fuller -- Hamstring

Will Fuller's MRI results have already been reported by NFL.com, and the "significant pull" is likely a Grade II hamstring strain that would usually entail a two- to four-week absence. One in four receiver hamstring injuries falls into that group, but most of those players still return within five weeks. Kenny Stills, himself a recent absentee due to a hamstring injury, is expected to fill much of Fuller's role, with Keke Coutee as the third receiver.

Safety Tashaun Gipson injured his back. No further specifics are yet available.

Concussions

The following players left their respective games with concussion symptoms and enter the league protocol:

49ers receiver Marquise Goodwin

Bears special-teamer Sherrick McManus

Eagles cornerback Avonte Maddox

Falcons halfback Ito Smith

49ers halfback Matt Breida missed a portion of the game while undergoing a concussion evaluation, but he was eventually cleared to return.

Based on our current data, a growing majority of players now miss at least one game following a diagnosed concussion, but around 80% return within two weeks.

Other Injuries

Bills safety Kurt Coleman injured his hamstring against the Dolphins. He is likely to miss a week or two, as is common for defensive backs with hamstring injuries, but the injury is unlikely to sideline him for long.

Cowboys linebacker Leighton Vander Esch left Sunday's game with a neck injury, but that appears to have been a precautionary move. Vander Esch is not expected to miss further time. Linebacker Robert Quinn injured his ribs, but he is also expected to be OK.

Falcons quarterback Matt Ryan's ankle sprain is not considered serious, but the team does not expect him to practice early in the week. He is expected to return later in the week, and they hope to have him available for the visit of Seattle. Matt Schaub will start if Ryan cannot.

Giants halfback Saquon Barkley returned from an ankle injury against the Cardinals, but he left again briefly after being hurt in the first quarter. Barkley was cleared to return, however, and he is not expected to miss further time.

Jaguars linebacker Najee Goode is dealing with a turf toe injury, a debilitating sprain of the ligament of the big toe that can lead to long-term absences if not given time to properly heal. He may miss time. Left tackle Cam Robinson also left with a toe injury, but no further specifics are yet available.

Lions halfback Kerryon Johnson left Sunday's game with a knee injury. He was spotted working out on a stationary bike on the sideline, which suggests that he was hoping to return, but no further update on his status is yet public. We will update if the injury is more serious than most observers suspect. Cornerback Darius Slay injured his hamstring and did not return. Hamstring injuries to defensive backs usually cause at least one missed game, but a significant majority of players return within two weeks.

Raiders halfback Josh Jacobs left Sunday's game with a shoulder injury, but he was cleared to return and his active status for Week 8 does not appear to be in jeopardy.

Redskins halfbacks Adrian Peterson and Chris Thompson were both evaluated after Sunday's defeat against the 49ers. Peterson's ankle was twisted on the play on which he fumbled, and Thompson has a toe injury. Safety Montae Nicholson injured his right ankle and was spotted in a protective boot after the game, but no further specifics are yet public.

Saints cornerback Eli Apple injured his knee against the Bears, but initial reports suggest that he avoided major injury. A hyperextension has been widely reported, which is unlikely to keep Apple out for long. Fellow cornerback Patrick Robinson injured his hamstring. The Saints worked out Kayvon Webster today in case either misses significant time, but neither is currently expected to be absent for long.

Titans tight end Delanie Walker injured his ankle in the first half against the Chargers and did not return to the game. Cornerback Adoree Jackson injured his foot. No further update is yet available for either player.

Vikings receiver Adam Thielen left Sunday's game with a hamstring injury and is likely to miss this week's Thursday Night Football matchup against Washington, though he has pledged to do all he can to suit up. The team does not believe that Thielen's injury will affect him much beyond that, assuming that he avoids aggravating it in his determination to play in Week 8.