Detroit Lions players celebrate after kicker Matt Prater (5), right, kicked the match winning field goal during the NFL football game against Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions outside linebacker Tahir Whitehead (59) warms-up before the NFL football game against the Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Fans arrive at Wembley Stadium before the NFL football game between the Atlanta Falcons and the Detroit Lions in London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons quarterback Matt Ryan (2) passes the ball as he warms-up before the NFL football game against the Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Fans arrive at Wembley Stadium before the NFL football game between the Atlanta Falcons and the Detroit Lions in London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons quarterback Matt Ryan (2) passes the ball as he warms-up before the NFL football game against the Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Atlanta Falcons players gather as they warm-up before the NFL football game against the Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Former Atlanta Falcons running back Warrick Dunn poses for photographs with fans before kickoff. (Dave Shopland/NFL)

The atmosphere outside of Wembley Stadium before kickoff between the Detroit Lions and the Atlanta Falcon in London. (Dave Shopland/NFL)

Atlanta Falcons running back Devonta Freeman (24), right, celebrates after scoring the opening touchdown during the NFL football game against Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Atlanta Falcons running back Devonta Freeman (24), left, races into the end zone to score the opening touchdown during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Atlanta Falcons running back Devonta Freeman (24) celebrates after scoring the opening touchdown during the NFL football game against Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Atlanta Falcons running back Devonta Freeman (24) runs to the end zone for a touchdown against Detroit Lions outside linebacker Tahir Whitehead (59) in the first half of the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons running back Steven Jackson (39) carries the ball against Detroit Lions outside linebacker Tahir Whitehead (59) in the first half of the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons fullback Patrick DiMarco (42), centre, is tackled by Detroit Lions outside linebacker DeAndre Levy (54) during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions running back Theo Riddick (25), second left, is tackled by Atlanta Falcons inside linebacker Paul Worrilow (55) during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Atlanta Falcons running back Steven Jackson (39) carries the ball against Detroit Lions cornerback Rashean Mathis (31) in the first half of the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons wide receiver Roddy White (84) carries the ball against Detroit Lions outside linebacker DeAndre Levy (54) after receiving a pass in the first half of the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Detroit Lions running back Theo Riddick (25), second left, is tackled by Atlanta Falcons inside linebacker Paul Worrilow (55) during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions quarterback Matthew Stafford (9), left, runs with the ball during the NFL football game against Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions quarterback Matthew Stafford (9) looks for a receiver in the first half of the NFL football game against the Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons wide receiver Julio Jones (11) is tackled by Detroit Lions cornerback Rashean Mathis (31) and defensive end George Johnson (93) in the first half of the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons wide receiver Julio Jones (11) runs away from Detroit Lions free safety Glover Quin (27) in the first half of the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons tight end Bear Pascoe (86) catches a touchdown pass thrown by quarterback Matt Ryan (2) in the first half of the NFL football game against the Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Atlanta Falcons quarterback Matt Ryan (2), left, shouts out during the NFL football game against Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions wide receiver Jeremy Ross (12) leaps open a challenge by Atlanta Falcons strong safety Kemal Ishmael (36) during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions wide receiver Jeremy Ross (12) leaps open a challenge by Atlanta Falcons strong safety Kemal Ishmael (36) during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Atlanta Falcons running back Steven Jackson (39), second left, celebrates after scoring his side's third touchdown during the NFL football game against Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions wide receiver Jeremy Ross (12), right, leaps open a challenge by Atlanta Falcons strong safety Kemal Ishmael (36) during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Atlanta Falcons running back Steven Jackson (39), left, runs into the end zone to score his side's third touchdown during the NFL football game against Detroit Lions at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions wide receiver Golden Tate (15), centre, fails to catch a pass as he is challenged by Atlanta Falcons free safety Dwight Lowery (20), right, and cornerback Desmond Trufant (21) during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions wide receiver Jeremy Ross (12) leaps open a challenge by Atlanta Falcons strong safety Kemal Ishmael (36) during the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions wide receiver Golden Tate (15) catches the ball to score a touchdown during the NFL football game against Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions cornerback Cassius Vaughn (29) runs to the end zone for a touchdown after intercepting a pass thrown by Atlanta Falcons quarterback Matt Ryan (2) in the second half of the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Detroit Lions wide receiver Golden Tate (15) runs against Atlanta Falcons strong safety Kemal Ishmael (36) in the second half of the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Detroit Lions running back Joique Bell (35), centre, is tackled by the Atlanta Falcons defenceduring the NFL football game at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions players celebrate after kicker Matt Prater (5), centre, kicked the match winning field goal during the NFL football game against Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions players celebrate after kicker Matt Prater (5), centre, kicked the match winning field goal during the NFL football game against Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions kicker Matt Prater (5), right, kicks the match winning field goal during the NFL football game against Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Tim Ireland)

Detroit Lions running back Theo Riddick (25) runs to the end zone for a touchdown after receiving a pass thrown by quarterback Matthew Stafford (9) in the second half of the NFL football game against the Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Detroit Lions running back Theo Riddick (25) celebrates a touchdown with wide receiver Corey Fuller (10) in the second half of the NFL football game against the Atlanta Falcons at Wembley Stadium, London, Sunday, Oct. 26, 2014. (AP Photo/Matt Dunham)

Detroit Lions kicker Matt Prater (5) celebrates with teammate after kicking the winning field goal as the clock ticks to zero against the Atalanta Falcons on Sunday, Oct. 16, 2014 in London. (Dave Shopland/NFL)

Detroit Lions kicker Matt Prater (5) celebrates with teammate after kicking the winning field goal as the clock ticks to zero against the Atalanta Falcons on Sunday, Oct. 16, 2014 in London. (Dave Shopland/NFL)

Detroit Lions kicker Matt Prater (5) celebrates with teammate after kicking the winning field goal as the clock ticks to zero against the Atalanta Falcons on Sunday, Oct. 16, 2014 in London. (Dave Shopland/NFL)

Detroit Lions kicker Matt Prater (5) celebrates with teammate after kicking the winning field goal as the clock ticks to zero against the Atalanta Falcons on Sunday, Oct. 16, 2014 in London. (Dave Shopland/NFL)