NFL training camp roundup: Chris Culliver tears ACL, Robert Griffin III continues to recover from surgery

Jamie Squire

Only two teams missed practice on Thursday, giving a near-full slate on NFL practices. Here's your full roundup from around the NFL.

The injury bug is biting around the NFL, with some teams seeing more devastating injuries than others. For most teams it's about managing the small nicks that comes with live practice, but the 49ers could be in for trouble if Chris Culliver misses the season.

AFC East

Buffalo Bills - The Buffalo Bills did not practice on Thursday.

Miami Dolphins - Receivers shook the injury bug on Thursday, as both Mike Wallace and Brian Hartline returned to the field for limited practice. Wallace revealed this week that a groin injury had kept him sidelined, but the surprise scratch of Hartline due to a strained calf raised questions about the health of the Dolphins' two big free agent signings. Both are hoping they will be healthy for Sunday's Hall of Fame game.

New England Patriots - Second round pick Aaron Dobson continued to turned heads on Thursday after the rookie receiver returned from injury, promptly beating Devin McCourty in one-on-one drills. Dobson was described as "the most exciting" receiver early in camp, and looks to have cemented himself as a starter for New England's first preseason game.

New York Jets - The quarterback battle between Mark Sanchez and Geno Smith is the marquee matchup, and while Smith has been given the edge early, Sanchez pushed back in two-minute drills. It's to be expected that the veteran would better understand hurry-up schemes, especially with his history in a pro style offense. However, the battle continues and won't likely be settled until the close of preseason.

AFC South

Houston Texans - Coach Gary Kubiak isn't surprised by the confidence exuding from rookie safety D.J. Swearinger, saying the team knew what kind of player he was when the Texans selected him in the second round. Still, the level of maturity he's shown has turned heads in camp. Swearinger was selected to be Houston's future, but needs to be ready a lot sooner as the team faces the possibility of being without Ed Reed to start the regular season. In that role, the rookie isn't only ready, but could serve as an example for the other young players on the team.

Indianapolis Colts - Darrius Heyward-Bey had some terrible reports in the first few days of camp, but recently he's turned the corner. Thursday was full of "wow moments" as the receiver caught deep passes and ran fluid routes. The emergence of Heyward-Bey has caught the eye of head coach Chuck Pagano, who commented on how well he played before continuing to extol his virtues to the media.

Jacksonville Jaguars - The Jaguars made a bold move to pass on the draft's top quarterbacks, instead giving the coaching staff time to evaluate Blaine Gabbert and the team's other signal callers. Head coach Gus Bradley called Gabbert "courageous" for the way he returned from an injury sustained Wednesday, and put forth another solid practice as he went 3-for-5 in 11-on-11 drills, including a 20-yard completion.

Tennessee Titans - Chris Johnson sat out of practice Thursday, as the star running back was being cautious with a non-serious ankle injury. Head coach Mike Munchak wants to see Johnson play in the team's first preseason game, citing a need to get tackled, which won't happen in the early stages of camp.

AFC North

Baltimore Ravens - Ed Dickson is continuing to make the most of his chances to shine while Dennis Pitta is out. On Thursday he split the seam between two defenders, and caught a deep pass -- taking it into the end zone. The emergence of Dickson couldn't come at a better time for a Ravens team in need of offensive playmakers.

Cincinnati Bengals - A short session on Thursday was still enough for the Bengals to sustain a serious injury. Andrew Hawkins left the field with an ankle injury, and will undergo an MRI to determine its severity. Late reports indicate that it may just be a high ankle sprain, but that would be enough to cause Hawkins to miss much of the preseason, and possibly the beginning of the regular season.

Cleveland Browns - Patellar tendinitis has sidelined receiver Josh Gordon for much of the week, but the second-year player was able to return to practice on Thursday. Head coach Rob Chudzinski hopes the uptick in his health will continue, as Gordon needs as many reps as possible right now. He'll miss the first two games of the regular season due to a suspension for violating the league's substance abuse policy.

Pittsburgh Steelers - The surprise Thursday was the play of wide receiver Plaxico Burress, as the 35-year-old receiver showed he has plenty left in the tank while burning much younger defensive backs. On one play, he caught a 40-yard pass before sauntering into the end zone untouched.

AFC West

Denver Broncos - Week 2 of Broncos camp began with heightened emotions, as a 10-man melee broke out between the offense and defense. Helmets were lost, punches thrown, and jerseys pulled -- and yet, despite the fight, players are downplaying the seriousness. There aren't likely to be any further repercussions, just daily competition getting the better of professionals.

Kansas City Chiefs- Rookie tight end Travis Kelce is making the most of his opportunities in camp, as the third round pick is separating himself from the pack. While there's still work to be done as a blocker, he could be an early difference maker on a team in need of offensive playmakers.

Oakland Raiders - Jacoby Ford remained sidelined by an undisclosed injury, but hopes to practice again by the end of the week. It's an inauspicious start to camp for Ford, as head coach Dennis Allen needs him on the field so he can better evaluate the third-year receiver.

San Diego Chargers - A tough training camp for the offensive line got a little better on Thursday as protection improved. Veteran tackle Max Starks said the new scheme has put them behind the defense, but that the "give and take" of camp allows for them all to get better.

NFC East

Dallas Cowboys - Newly extended quarterback Tony Romo could be in for some trouble in 2013 if the offensive line plays as it did on Thursday. The Cowboys have a potent pass rush, but it's hard to justify their struggles on a day where the protection gave up eight sacks in training camp. They'll need to be much tighter when the team sees live play, and when Romo returns to action.

New York Giants - The wait wasn't long for Justin Pugh, who began getting first-team reps at right tackle today. There were some early questions about what role Pugh would play this season with the team's veteran tackles, including some postulation that he could start the season at guard. Head coach Tom Coughlin didn't commit to anything more than a few reps, however.

Philadelphia Eagles - Rain forced the Eagles inside today, but rookie Mychal Kendricks is separating himself and made an impact early. He effectively covered wide receiver Riley Cooper, an impressive feat for an inside linebacker.

Washington Redskins - Robert Griffin III was stellar on Thursday, as the second-year quarterback completed 16 of 17 passes in 11-on-11 drills. Reports highlighted his improved footwork, as RGIII continues to recover from the ACL tear that ended his rookie season in the playoffs. Being able to plant better and better utilize his mechanics is a sign that he's almost back to full strength.

NFC South

Atlanta Falcons - Julio Jones looking "better than ever." That's a scary prospect for opposing defenses, but early reports indicate that Jones' third year could be his most dominant yet. It's easy for physically gifted receivers to rely on their athletic ability, but Jones is always working with the other receivers on his form and improving his cerebral game as much as his physical one.

Carolina Panthers - The Panthers shocked their team as they released veteran right guard Geoff Hangartner on Thursday. He had a down season in 2012, but the decision to cut a starter wasn't expected by the team's other veterans. As a result, the Panthers don't have a starting-caliber right guard with just over a week until their first preseason game. The offensive line have struggled throughout camp, and now it's time for first-year general manager Dave Gettleman to find a way to patch together a line.

New Orleans Saints - It's not the sexiest camp battle, but Luke McCown seems to have a grip on the backup quarterback job behind Drew Brees. McCown is making the most of his opportunities with Seneca Wallace sidelined, showing excellent accuracy and throwing a touchdown to Nick Toon.

Tampa Bay Buccaneers - This is a make or break year for Josh Freeman, and so far the quarterback looks sharp in camp. Thursday was his best practice so far, as numerous sources indicated that he looks the best of his career. The Buccaneers elected to select Mike Glennon in the draft, and it appears that might have lit a fire under the veteran.

NFC North

Chicago Bears - The Chicago Bears have myriad problems on their offensive line. A mismatched group got reps at offensive tackle on Thursday, but head coach Mark Trestman isn't too concerned. Instead he's focusing simply on putting the best five players on the field, and worrying about where they'll play later. Time will tell whether this interchangeable approach to offensive line play will pay off.

Detroit Lions - The best training camp battle so far has come on the line, as second-year lineman Riley Reiff and rookie defensive end Ezekiel Ansah are exchanging dominance in one-on-one reps. It's still early, but the mutual success of each is vitally important for the Lions to take a step forward in 2013, and take some of the pressure off Matthew Stafford and Calvin Johnson to be dominant.

Green Bay Packers - The Packers took to pads again on Thursday, and it was Morgan Burnett who took advantage of the opportunity to be physical. By the end of the practice he'd made numerous plays, including an interception, several battled passes, and multiple big hits.

Minnesota Vikings - A large cornerback like Xavier Rhodes thrives in man coverage, but looks slightly lacking as he plays off the line. There aren't really any concerns despite this early discomfort, as the Vikings' defensive scheme will allow him to play his preferred game. At this point the rookie hasn't moved up the depth chart, but that can change when preseason begins.

NFC West

Arizona Cardinals - The Arizona Cardinals did not practice on Thursday.

Seattle Seahawks - Percy Harvin remains the story of camp, undergoing surgery on Thursday which "went very well" according to head coach Pete Carroll. The organization isn't giving any timelines as it pays attention to the other 20 players who missed practice due to injury.

San Francisco 49ers - The biggest news from Thursday was cornerback Chris Culliver, who may have torn his ACL. The Niners' defense has been ravaged by recent injuries, with Patrick Willis and NaVorro Bowman missing time in camp also.

St. Louis Rams - Jared Cook has been making waves in training camp, and could be the key to reforming 'The Greatest Show on Turf." Thinking of him purely as a tight end limits his role in the offense, and when paired with Tavon Austin, they could form a dangerous vertical game for defenses in the NFC West.

More from SB Nation:

Scouts divided on Johnny Manziel’s NFL future

LeSean McCoy: ‘I can’t respect a guy like’ Riley Cooper

Seahawks’ Harvin has surgery, return timetable not set

49ers’ Culliver carted off field

Complete NFL training camp coverage

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