NFL tributes to Newtown, Conn.

The St. Louis Rams have a moment of silence for the victims in the Newtown, Conn. school shooting before the game against the Minnesota Vikings at the Edward Jones Dome.

Members of the Cleveland Browns kneel at the goal line before a game against the Washington Redskins at Cleveland Browns Stadium.

Indianapolis Colts defensive end Cory Redding (90) wipes his eyes while observing a moment of silence in honor of the victims of the Sandy Hook Elementary shooting in Newtown, Conn., during the first quarter against the Houston Texans at Reliant Stadium.

Miami Dolphins linebacker Austin Spitler (53) holds children's hands during a moment of silence to remember victims of the shooting that took place at Sandy Hook Elementary School in Newtown, Conn.

Miami Dolphins punter Brandon Fields (2) is seen during a moment of silence before a game against the Jacksonville Jaguars the at Sun Life Stadium.

A young Oakland Raiders fan holds a "Pray for Newtown" sign during the fourth quarter of the game against the Kansas City Chiefs at O.co Coliseum.

A general view of the Jacksonville Jaguars sideline during a moment of silence in honor of the victims of the shooting in Newtown, Conn. before their game against the Miami Dolphins at at Sun Life Stadium.

Buffalo Bills running back C.J. Spiller (28) wears the initials S.H.E.S. on his shoes in memory of the Sandy Hook Elementary School tragedy in Newtown, Conn.

An Atlanta Falcons fan participates in the moment of silence for Sandy Hook Elementary School before the game against the New York Giants at The Georgia Dome.

Minnesota Vikings head coach Leslie Frazier and St. Louis Rams head coach Jeff Fisher stand with Vikings cornerback Antoine Winfield (26) and Rams running back Daryl Richardson (26) for a moment of silence for the victims in the Newtown, Conn. school shooting before the game at the Edward Jones Dome.

Oakland Raiders fans stand with a sign paying tribute to the victims of the school shooting in Newtown, Conn.

New York Giants quarterback Eli Manning (10) wears a decal on his helmet in memory of the Sandy Hook Elementary School shootings in Newtown, Conn. before the game against the Atlanta Falcons at the Georgia Dome.

Denver Broncos quarterback Peyton Manning (18), running back Ronnie Hillman (21), tight end Jacob Tamme (84) and head coach John Fox stand during a moment of silence for the victims of Sandy Hook Elementary School shooting before the game against the Baltimore Ravens at M&T Bank Stadium.

Baltimore Ravens players observe a moment of silence to remember the elementary school shooting victims of Newtown, Conn. before the game against the Denver Broncos at M&T Bank Stadium.

Atlanta Falcons and New York Giants fans participate in the moment of silence for Sandy Hook Elementary School before the game against the New York Giants at The Georgia Dome.

Marker judges participate in the moment of silence for Sandy Hook Elementary School victims before the game between the New York Giants and the Atlanta Falcons at The Georgia Dome.

Washington Redskins players stand for a moment of silence for the shooting victims in Newtown, Cnn. before a game against the Cleveland Browns at Cleveland Browns Stadium.

Chicago Bears cornerback Charles Tillman (33) pays tribute to the victims of the Sandy Hook Elementary School shooting.

Arizona Cardinals players bow their heads during a moment of silence to the victims of the Sandy Hook Elementary shooting that occurred in Newtown, Conn. prior to a game against the Detroit Lions at University of Phoenix Stadium.

Buffalo Bills players observe a moment of silence in memory of the Sandy Hook Elementary School tragedy in Newtown, Conn. before a game against the Seattle Seahawks at Rogers Centre.

Atlanta Falcons and New York Giants fans participate in a moment of silence for Sandy Hook Elementary School before the game against the New York Giants at The Georgia Dome.

Arizona Cardinals and Detroit Lions fans bow their heads during a moment of silence for the victims of the Sandy Hook Elementary shooting that occurred in Newtown, Conn., prior to the game at University of Phoenix Stadium.

New Orleans Saints players defensive tackle Junior Galette (93), wide receiver Courtney Roby (15), outside linebacker Jonathan Casillas (52), quarterback Drew Brees (9) and line judge Tim Podraza (47) bow their heads during a moment of silence to remember the victims of the Sandy Hook Elementary shooting prior to a game against the Tampa Bay Buccaneers at the Mercedes-Benz Superdome.