ST. LOUIS — St. Louis Rams defensive tackle Clifton Ryan returned to practice Friday, the latest step in recovering from migraine headaches that kept him out of two games.

Rams safety Craig Dahl held out of practice again with concussion symptoms

ST. LOUIS — St. Louis Rams safety Craig Dahl is still feeling effects of a concussion.

Browns tight end Evan Moore has better understanding of head injury after concussion

BEREA, Ohio — Browns tight end Evan Moore thought he had survived a vicious hit. Then the stadium started spinning.

Cleveland Clinic teaming with Rawlings to research concussions and head injuries

Denver Broncos say there weren’t any signs that WR Kenny McKinley was suicidal

Hall of Famer says NFL still not doing enough to address injuries among players

SANTA CLARA, Calif. — Jim Brown isn’t surprised by the rise in diagnosed concussions among NFL players and says the league and the union need to do more to protect those players.

Panthers QB Matt Moore practices following concussion, could play vs. Buccaneers

New book: White House party crasher Michaele Salahi says she has multiple sclerosis

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NFL doctor says four concussions in one weekend bears close watching

NFL doc: Four concussions in Week 1 not a trend

With sleep apnea diagnosis, Percy Harvin believes his migraine problems are in the past

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First lady Michelle Obama visits French Quarter for NFL exercise clinic for children

3 years after breaking back in accident, WR Artrell Woods still chasing football dreams

Former Jet Washington soaring for Seahawks 10 months after compound leg fracture

Leon Washington is back, thanks to Uncle George

Vikings WR Sidney Rice has hip surgery, may miss first half of season; Walker signed for depth

Vikings WR Rice out with hip injury

EDEN PRAIRIE, Minn. — Brett Favre’s job just got a whole lot tougher.

Vikings’ Harvin out of hospital, ‘doing fine’ after migraine attack, but return unclear

Vikings’ Harvin out of hospital and ‘doing fine’

Vikings receiver Percy Harvin taken to hospital after apparent migraine attack at practice

Vikings’ Harvin has migraine attack at practice

Eli Manning feeling some discomfort, undergoing more tests, Saturday a question mark

Manning undergoing more tests, uncertain for game

After 2 weeks away for mourning and migraines, Percy Harvin is back at practice with Vikings

Percy Harvin returns to practice with Vikings

Former lineman Jamar Nesbit sues NFL over StarCaps, a weight-loss supplement

Jamar Nesbit sues NFL over weight-loss supplement

Seahawks’ Curry among 1st to be treated in new NFL era of dealing with head injuries

Seahawks’ Curry a test case in new concussion era

Harvin absent again from Vikings, Childress confirms receiver has had ’some’ migraines

Childress confirms Harvin has had ’some’ migraines

Get on the bus: Goodell talks Favre, 18-game schedule, CBA, HGH test on Madden Cruiser

‘You see that report?’: Goodell, Madden tour camps

Seahawks starting LB Aaron Curry remains out with concussion after jarring start to camp

Seahawks LB Curry remains out with concussion

S Kenny Phillips misses planned return on first day of Giants’ training camp.

Cookie monster: Jets’ Jenkins losing weight before training camp with unconventional diet

Jets’ Jenkins dropping weight while eating cookies

Just a poster, but another step forward in the NFL’s changed thinking on concussions

Poster latest show of NFL concussion reality

Former Browns center LeCharles Bentley sues team over career-ending staph infection

Former Browns center Bentley sues team over staph

WVU doctors who studied brain of Bengals’ Henry find evidence of chronic traumatic injury

William ‘Refrigerator’ Perry has some hearing loss but improving from immune system condition

‘Fridge’ has hearing loss, but condition improving

Bush says USC sanctions ‘closest thing to death without dying,’ pledges to support appeal

Bush pledges to help USC fight NCAA sanctions

Jets QB Sanchez feeling healthy, confident he’ll be able to fully participate in minicamp

Jets’ Sanchez confident he’ll be set for minicamp

Ideas run the gamut at conference on NFL and brain injuries; doctors say more research needed

Ideas aplenty at forum on NFL and brain injuries

Teammate: Moss received 3 treatments from Canadian doctor, confident he will be cleared

Teammate: Moss had treatments with Canadian doctor

Moss tells teammates he was treated by Canadian doctor; Redskins confident he will be cleared

Redskins confident Santana Moss won’t be suspended

House committee criticizes NFL doctors on equipment, helmets and treatment of retired players

House committee criticizes NFL docs on head trauma

Redskins’ Shanahan taking ‘wait and see’ approach after reports link Moss to Canadian doctor

Redskins’ Shanahan: ‘Wait and see’ on Moss, doctor

Texans LB Cushing says he tested positive for HCG, denies using any banned substance

Texans LB Cushing denies drug use

HOUSTON — Houston Texans linebacker Brian Cushing said Thursday he never used any banned substances even though he tested positive for a performance-enhancing drug.

Person familiar with Cushing’s case: Texans LB tested positive for HCG, a fertility drug

AP Source: Cushing tested positive for HCG

New wrinkle in Favre waiting game, says ankle injury requires surgery but not debilitating

Favre throws new wrinkle into waiting game

Favre tells ESPN he needs left ankle surgery to play next season

Favre tells ESPN he needs surgery to play

EDEN PRAIRIE, Minn. — Once again, Brett Favre says he isn’t sure what he wants to do.

Texans partner with neurological institute to help raise awareness about concussions in youth

Houston Texans, clinic team on concussion effort

Jets QB Mark Sanchez hopes to run in mid-May, doesn’t rule out return before training camp

Jets QB Sanchez could return before training camp

AP ENTERPRISE: Athletes turn to ‘blood spinning’ to heal faster, but researchers have doubts

GM says Redskins invited 500 area high school football coaches to minicamp, concussion forum

Redskins invite local coaches to concussion forum

Jets coach Rex Ryan undergoes lap-band procedure to help lose weight

Jets coach Rex Ryan has weight-loss surgery

Peyton’s Pain: Manning’s neck surgery not expected to affect his offseason workouts

Manning recovering from neck surgery

INDIANAPOLIS — Peyton Manning has spent 12 seasons being a pain in the neck of NFL opponents. Now the four-time league MVP is trying to alleviate the pain in his own neck.