FILE - In this Oct. 2, 2011, file photo, taken with a fisheyelens, the Seattle Seahawks and Atlanta Falcons play during an NFL football game at CenturyLink Field in Seattle. Opened in 2002, the stadium's signature roof canopies and rainbow-like trusses hang over the field to protect most of the seats and trap in the crowd noise. (AP Photo/Elaine Thompson, File)

FILE - In this Sept. 12, 2010, file photo, fans fill Heinz Field during an NFL football game between the Pittsburgh Steelers and Atlanta Falcons in Pittsburgh. Opened in 2001, the stadium's south end opens to a river and a skyline view. (AP Photo/Keith Srakocic, File)

FILE - In this Oct. 2, 2011, file photo, taken with a fisheyelens, the Seattle Seahawks and Atlanta Falcons play during an NFL football game at CenturyLink Field in Seattle. Opened in 2002, the stadium's signature roof canopies and rainbow-like trusses hang over the field to protect most of the seats and trap in the crowd noise. (AP Photo/Elaine Thompson, File)

FILE - In this Sept. 12, 2010, file photo, fans fill Heinz Field during an NFL football game between the Pittsburgh Steelers and Atlanta Falcons in Pittsburgh. Opened in 2001, the stadium's south end opens to a river and a skyline view. (AP Photo/Keith Srakocic, File)

Atlanta Falcons and former Boston College quarterback Matt Ryan pauses during a moment of silence for victims of the Boston Marathon bombings during the Gwinnett Braves minor league baseball game against the Pawtucket Red Sox, the Triple-A affiliate of the Boston Red Sox, Tuesday, May 7, 2013, in Lawrenceville, Ga. The Braves held "Boston Strong Night" to raise money for OneFundBoston.org. Steve Picano, rear, who is originally from Boston, holds a sign listing the names of bombing victims. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons cornerbacks Robert Alford, left, and Desmond Trufant talk during NFL football rookie minicamp, Sunday, May 5, 2013, in Flowery Branch, Ga. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons rookie tight end Levine Toilolo loosens up during NFL football rookie minicamp, Sunday, May 5, 2013, in Flowery Branch, Ga. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons tight end Levine Toilolo, from Stanford, works out during NFL football rookie minicamp, Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons quarterback Sean Renfre, from Duke, works out during NFL football rookie minicamp, Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons cornerback Robert Alford (23) from Southeast Louisiana, works out during NFL football rookie minicamp, Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons cornerbacks Desmond Trufant, from Washington, works out during NFL football rookie minicamp, Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons rookie cornerback Robert Alford stretches during NFL football rookie minicamp, Sunday, May 5, 2013, in Flowery Branch, Ga. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

050513 FLOWERY BRANCH: Falcons rookie defensive end Malliciah Goodman stretches out during rookie minicamp on Sunday, May 5, 2013, in Flowery Branch, Ga. CURTIS COMPTON / CCOMPTON@AJC.COM (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons rookie wide receiver Martel Moore catches a pass during NFL football rookie minicamp, Sunday, May 5, 2013, in Flowery Branch, Ga. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons cornerbacks Robert Alford, left, and Desmond Trufant run a drill during NFL football rookie minicamp, Sunday, May 5, 2013, in Flowery Branch, Ga. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons cornerbacks Robert Alford, left, and Desmond Trufant talk during NFL football rookie minicamp, Sunday, May 5, 2013, in Flowery Branch, Ga. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons rookie tight end Levine Toilolo (80) runs drills during NFL football rookie minicamp, Sunday, May 5, 2013, in Flowery Branch, Ga. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons rookie tight end Levine Toilolo loosens up during NFL football rookie minicamp, Sunday, May 5, 2013, in Flowery Branch, Ga. (AP Photo/Atlanta Journal-Constitution, Curtis Compton)

Atlanta Falcons tackle Tyson Clabo (77) faces Tampa Bay Buccaneers tight end Dallas Clark (44) during the first half of an NFL football game Sunday, Dec. 30, 2012, in Atlanta. (AP Photo/John Bazemore)

Atlanta Falcons tackle Tyson Clabo (77) faces Tampa Bay Buccaneers tight end Dallas Clark (44) during the first half of an NFL football game Sunday, Dec. 30, 2012, in Atlanta. (AP Photo/John Bazemore)

Atlanta Falcons president and CEO Rich McKay participates in Georgia's youth football forum where attendees shared best practices, learned about health and safety initiatives and networked to help grow the sport of football in Atlanta, Saturday, May 4, 2013. AP Photo/David Tulis)

Georgia youth football forum participants learned about health and safety initiatives, including helmet design, and listened to Atlanta Falcons president and CEO Rich McKay talk about growing the sport of football in Atlanta Saturday, May 4, 2013. AP Photo/David Tulis)

Former Atlanta Falcons receiver Brian Finneran introduces himself at Georgia's youth football forum where attendees shared best practices, learned about health and safety initiatives and networked to help grow the sport of football in Atlanta, Saturday, May 4, 2013. AP Photo/David Tulis)

Atlanta Falcons president and CEO Rich McKay participates in Georgia's youth football forum where attendees share best practices, learn about health and safety initiatives and network to help grow the sport of football in Atlanta, Saturday, May 4, 2013. (AP Photo/David Tulis)

Atlanta Falcons Malliciah Goodman, from Clemson, warms up during NFL football rookie minicamp Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons cornerbacks Desmond Trufant, right, from Washington, and Momo Thomas from Colorado State, workout during NFL football rookie minicamp, Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons defensive end Stansly Maponga, from Clemson, watches during NFL football rookie minicamp Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons defensive end Malliciah Goodman, from Clemson, works out during NFL football rookie minicamp, Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons cornerbacks Desmond Trufant, from Washington, works out during NFL football rookie minicamp, Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)

Atlanta Falcons tight end Levine Toilolo, from Stanford, works out during NFL football rookie minicamp, Saturday, May 4, 2013, in Flowery Branch, Ga. (AP Photo/John Amis)