FILE - In this Nov. 2, 2011, file photo, Buffalo Bills linebacker Kirk Morrison runs a drill during NFL football practice in Orchard Park, N.Y. In recent interviews with 40 players _ 13 rookies, 17 active veterans and 10 former NFL players _ The Associated Press heard growing worry about the physical and emotional toll professional football takes. The 43-year old former NFL linebacker Junior Seau's suicide at his oceanfront home on May 2, 2012, resonated across the age groups, with more than half of each saying that particular event pushed them to ponder their future in the sport or the difficulties of adjusting to a new daily life after leaving the league.

FILE - In this May 11, 2012, file photo, Buffalo Bills' Stephon Gilmore look so during NFL football rookie camp in Orchard Park, N.Y. Gilmore is ready to compete for a starting job, after the first-round draft pick signed a four-year contract worth about $12 million on Thursday, May 17, 2012.

Buffalo Bills quarterback Vince Young speaks during an NFL football news conference in Orchard Park, N.Y., Tuesday, May 15, 2012.

Buffalo Bills' Vince Young speaks during an NFL football news conference in Orchard Park, N.Y., Tuesday, May 15, 2012. Young is preparing to kick off the latest chapter of his up-and-down career after formally signing his one-year contract with the Bills.

Buffalo Bills' Vince Young speaks during an NFL football news conference in Orchard Park, N.Y., Tuesday, May 15, 2012. Young is preparing to kick off the latest chapter of his up-and-down career after formally signing his one-year contract with the Bills.

FILE - In this Jan. 3, 1993, file photo, Buffalo Bills wide receiver Andre Reed (83) and Keith McKeller celebrate Reed's third touchdown during the fourth quarter of an NFL football wild-card playoff game against the Houston Oilers at Rich Stadium in Orchard Park, N.Y. The Bills came back from a 35-3 deficit to win 41-38 in overtime. Buffalo's comeback is considered one of the all-time greatest in sports history.

Buffalo Bills' Mark Asper (63) runs a drill with offensive line coach Joe D'Alessandris during NFL football rookie camp in Orchard Park, N.Y., Friday, May 11, 2012.

Buffalo Bills' T. J. Graham makes a catch during NFL football rookie minicamp in Orchard Park, N.Y., Friday, May 11, 2012.

Buffalo Bills' Cordy Glenn, left, runs a drill with offensive line coach Joe D'Alessandris during NFL football rookie minicamp in Orchard Park, N.Y., Friday, May 11, 2012.

Buffalo Bills coach Chan Gailey watches during NFL football rookie camp in Orchard Park, N.Y., Friday, May 11, 2012.

Buffalo Bills' Stephon Gilmore looks on after an NFL football rookie camp in Orchard Park, N.Y., Friday, May 11, 2012.

Buffalo Bills' Stephon Gilmore runs after intercepting a pass during NFL football rookie camp in Orchard Park, N.Y., Friday, May 11, 2012.

Buffalo Bills' Stephon Gilmore intercepts a pass during NFL football rookie camp in Orchard Park, N.Y., Friday, May 11, 2012.

Buffalo Bills' Stephon Gilmore looks on after an NFL football rookie camp in Orchard Park, N.Y., Friday, May 11, 2012.

Buffalo Bills' T. J. Graham makes a catch during NFL football rookie mini camp in Orchard Park, N.Y., Friday, May 11, 2012.

ORCHARD PARK, NY - MAY 11: Tank Carder #45 of the Buffalo Bills adjusts his chin strap during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Ron Brooks #33 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Nigel Bradham #53 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Tank Carder #45 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: John Potter #3 of the Buffalo Bills walks the field during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Delano Howell #36 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Stephon Gilmore #27 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: John Potter #3 of the Buffalo Bills walks the field during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Ron Brooks #33 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Zebrie Sanders #66 of the Buffalo Bills does drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Nigel Bradham #53 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: John Potter #3 of the Buffalo Bills stretches during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Tank Carder #45 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Stephon Gilmore #27 of the Buffalo Bills runs drills during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)

ORCHARD PARK, NY - MAY 11: Mark Asper #63 of the Buffalo Bills takes instruction from Bills offensive line coach Joe D'Alessandris during Buffalo Bills Rookie Camp on May 11, 2012 in Orchard Park, New York. (Photo by Rick Stewart/Getty Images)