Former New England Patriots football player Ted Johnson pauses while speaking to reporters after addressing a conference on pediatric concussions at Children's Hospital in Boston, Friday, May 18, 2012. Johnson says the death of former Patriots' Junior Seau was "the tip of the tipping point" that convinced him to speak out for concussion victims.

Former New England Patriots football player Ted Johnson speaks to a conference on pediatric concussions at Children's Hospital in Boston, Friday, May 18, 2012. Johnson says the death of former Patriots' Junior Seau was "the tip of the tipping point" that convinced him to speak out for concussion victims.

Former New England Patriots football player Ted Johnson speaks to a conference on pediatric concussions at Children's Hospital in Boston, Friday, May 18, 2012. Johnson says the death of former Patriots' Junior Seau was "the tip of the tipping point" that convinced him to speak out for concussion victims.

FILE - In this Jan. 14, 2012 file photo, New Orleans Saints head coach Sean Payton stands next to quarterback Chase Daniel (10) during the second quarter of an NFL divisional playoff football game against the San Francisco 49ers in San Francisco. With Brees staying away from Saints headquarters during protracted contract negotiations, Daniel has been penciled in to take the first-team snaps when New Orleans begins its first offseason practices next week.

FILE - In this Jan. 7, 2012 file photo, New Orleans Saints quarterback Drew Brees (9) and quarterback Chase Daniel (10) run onto the field prior to the first half of an NFL wild card playoff football game against the Detroit Lions in New Orleans. With Brees staying away from Saints headquarters during protracted contract negotiations, Daniel has been penciled in to take the first-team snaps when New Orleans begins its first offseason practices next week.

FILE - In this Dec. 26, 2011 file photo, New Orleans Saints quarterback Chase Daniel (10) talks to quarterback Drew Brees on the bench in the first quarter of an NFL football game against the Atlanta Falcons in New Orleans. With Brees staying away from Saints headquarters during protracted contract negotiations, Daniel has been penciled in to take the first-team snaps when New Orleans begins its first offseason practices next week. Person at right is unidentified.

FILE - In this Dec. 11. 2011 file photo, New Orleans Saints quarterback Chase Daniel (10), runs onto the field before the start of an NFL football game between the Saints and the Tennessee Titans. With Brees staying away from Saints headquarters during protracted contract negotiations, Daniel has been penciled in to take the first-team snaps when New Orleans begins its first offseason practices, known as organized team activities, on Tuesday.

In this Dec. 18, 2011, photo, Philadelphia Eagles' LeSean McCoy carries during an NFL football game against the New York Jets in Philadelphia. The Eagles on Thursday, May 17, 2012, agreed to terms with McCoy on a five-year contract extension that runs through 2017. McCoy set franchise records in 2011 with 17 rushing touchdowns, and 20 total scores.