Chad Pennington, Shawne Merriman and Frank Gore were among the key players who sustained injuries in Week 3.

Dolphins QB Chad Pennington was knocked out of Sunday’s game against the Chargers with a right shoulder injury and didn’t return. Chad Henne, who was listed as the Dolphins’ No. 3 QB, replaced Pennington, who was 8-of-12 passing for 54 yards before he left the game.

NFL Network’s Jason La Canfora reports 49ers RB Frank Gore suffered a high ankle strain on Sunday and is likely to miss at least the next two games, according to a league source.

A good bit of news for the Redskins in their game against the Lions today: Injured DT Albert Haynesworth has returned.

The New England Patriots are missing two injured starters against the Falcons, as NT Vince Wilfork and RB Laurence Maroney are questionable to return to the game with injuries.

Washington Redskins DT Albert Haynesworth was carted off the field against the Detroit Lions with what appears to be a serious right leg injury.

Rams starting QB Marc Bulger has left today’s game against the Packers with a bruised right shoulder. He’s listed as questionable to return.

San Francisco 49ers RB Frank Gore was in the starting lineup today against the Minnesota Vikings, but his lingering right ankle injury might make it a short day.

The official Thursday injury reports have been filed around the league, and here are some of the key injuries we’re following heading into Week 3 games.

When the Giants face the Bucs this weekend, their heralded depth along the defensive line could be short a couple of names — as in Justin Tuck and Chris Canty. On Wednesday, Tuck didn’t back down from his opinion of the play by the Cowboys’ Flozell Adams that caused his injury.

While all the news out of Philadelphia today seems quarterback-related, the status of injured RB Brian Westbrook is no less important to the Eagles’ success.

The Giants are preparing to be without defensive linemen Chris Canty and Justin Tuck in Sunday’s game against the Buccaneers, according to league sources..

As expected, Chargers RB LaDainian Tomlinson sat out practice on Thursday for the second straight day as he rests his injured right big toe.

Chicago WR/KR Devin Hester didn’t practice on Wednesday, and didn’t speak to the media regarding his rib injury either. Hester had an MRI exam on Tuesday and his status vs. Tampa Bay remains in question.