Atlanta Falcons team owner Arthur Blank talks with line judge Sarah Thomas, right, as they walk across the field before an NFL football game against the Dallas Cowboys Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Atlanta Falcons quarterback Matt Ryan (2) throws as he warms up before an NFL football game against the Dallas Cowboys Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Newly acquired Dallas Cowboys quarterback Matt Cassel walks on the field during warm ups before an NFL football game against the Atlanta Falcons Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys team owner Jerry Jones gestures as he talks with others on the field as the Cowboys and Atlanta Falcons warm up before an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Atlanta Falcons quarterback Matt Ryan (2) talks with Dallas Cowboys quarterback Tony Romo, right, during warm ups before an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys quarterback Brandon Weeden (3) throws as he warms up before an NFL football game against the Atlanta Falcons Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys quarterback Brandon Weeden (3) stretches during warm ups before an NFL football game against the Atlanta Falcons on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys quarterback Brandon Weeden (3) hands the ball off to running back Joseph Randle in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Atlanta Falcons cornerback Robert Alford (23) and cornerback Desmond Trufant (21) are sent flying along with Dallas Cowboys wide receiver Devin Street (15) as running back Joseph Randle (21) scores a touchdown on a running play during the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Dallas Cowboys running back Joseph Randle (21) escapes a tackle attempt by Atlanta Falcons free safety Ricardo Allen (37) in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Dallas Cowboys running back Joseph Randle (21) sprints past the line of scrimmage on his way to the end zone for a touchdown against the Atlanta Falcons in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Atlanta Falcons quarterback Matt Ryan (2) is sacked by Dallas Cowboys outside linebacker Sean Lee in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Dallas Cowboys running back Joseph Randle (21) is congratulated in the end zone after scoring on a running play against the Atlanta Falcons in an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys' Travis Frederick (72), Devin Street (15) and others celebrate with running back Joseph Randle, second from left smiling, after Randle scored his second touchdown in the first quarter on a running play against the Atlanta Falcons in an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Dallas Cowboys running back Joseph Randle (21) gets by Atlanta Falcons defensive end Tyson Jackson, left, as Randle enters the end zone for a touchdown in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Atlanta Falcons running back Devonta Freeman (24) escapes a tackle attempt by Dallas Cowboys' Anthony Hitchens (59) in the first first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Atlanta Falcons running back Devonta Freeman (24) sprints to the end zone for a touchdown on a running play against the Dallas Cowboys in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Atlanta Falcons quarterback Matt Ryan (2) prepares to pass in the first half of an NFL football game against the Dallas Cowboys, Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Atlanta Falcons quarterback Matt Ryan (2) passes against the Dallas Cowboys in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Atlanta Falcons running back Devonta Freeman (24) and tight end Levine Toilolo (80) celebrate a touchdown scored by Freeman in the first half of an NFL football game against the Dallas Cowboys, Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Dallas Cowboys cornerback Brandon Carr (39) pursues as Atlanta Falcons wide receiver Julio Jones (11) grabs a pass from quarterback Matt Ryan in the first half of an NFL football game Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Dallas Cowboys free safety J.J. Wilcox (27) walks away as Atlanta Falcons' Jacob Tamme (83) and Julio Jones (11) celebrate with Devonta Freeman (24) after Freeman scored a touchdown in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Atlanta Falcons wide receiver Roddy White (84) dives for extra yardage as Dallas Cowboys strong safety Barry Church (42) and Ken Bishop (93) close in for the stop in the first half of an NFL football game Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Dallas Cowboys running back Lance Dunbar (25) gets past a tackle-attempt by Atlanta Falcons free safety Ricardo Allen (37) on a running play in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys running back Darren McFadden (20) is congratulated by head coach Jason Garrett after scoring a touchdown in the first half of an NFL football game against the Atlanta Falcons, Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Atlanta Falcons running back Devonta Freeman (24) celebrates scoring a touchdown with teammates as Dallas Cowboys middle linebacker Anthony Hitchens (59) walks away in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Atlanta Falcons running back Devonta Freeman (24) celebrates scoring a touchdown after getting through Dallas Cowboys' J.J. Wilcox (27) and Kyle Wilber, rear, in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Dallas Cowboys wide receiver Dez Bryant watches play against the Atlanta Falcons from the sideline in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys' Tyler Clutts (44) and Brandon Weeden (3) celebrate with Joseph Randle (21) after Randle scored a touchdown in the second quarter of an NFL football game against the Atlanta Falcons, Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys' Kyle Wilber, left, and Sean Lee (50) combine to stop Atlanta Falcons' Devonta Freeman (24) after a short gain in the second half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Dallas Cowboys cornerback Morris Claiborne (24) breaks up a pass intended for Atlanta Falcons' Julio Jones (11) in the second half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Atlanta Falcons tight end Levine Toilolo (80) walks in the end zone as back judge Dale Shaw (104) signals touchdown in the second half of an NFL football game against the Dallas Cowboys on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Atlanta Falcons wide receiver Julio Jones (11) sails into the end zone for a touchdown as Dallas Cowboys defensive back Tyler Patmon (26) watches in the second half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Dallas Cowboys running back Joseph Randle (21) leaps over Atlanta Falcons' Tyson Jackson (94), Grady Jarrett (97) and William Moore (25) as Ricardo Allen (37) watches for a touchdown in the first half of an NFL football game, Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Dallas Cowboys running back Lance Dunbar (25) fights for extra yardage on a running play as Atlanta Falcons' Phillip Adams (20), Ricardo Allen (37), and William Moore (25) combine for the stop in the first half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Atlanta Falcons running back Devonta Freeman (24) has his mask held by Dallas Cowboys' J.J. Wilcox (27) as Freeman scored a touchdown during the second half of an NFL football game Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Atlanta Falcons quarterback Matt Ryan, left, and Dallas Cowboys quarterback Brandon Weeden greet each other on the field as injured Cowboys quarterback Tony Romo, right, watches after an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. The Falcons won 39-28. (AP Photo/Michael Ainsworth)

Atlanta Falcons wide receiver Julio Jones (11) breaks a tackle attempt by Dallas Cowboys' Brandon Carr (39) as J.J. Wilcox, left, and Jack Crawford (58) assist on the play in the second half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Atlanta Falcons running back Devonta Freeman (24) breaks past Dallas Cowboys' J.J. Wilcox (27) into the end zone for a touchdown during the second half of an NFL football game Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Brandon Wade)

Atlanta Falcons' Devonta Freeman (24) is greeted at the sideline by coach Dan Quinn, right, during the second half of an NFL football game against the Dallas Cowboys on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth )

Atlanta Falcons' Devonta Freeman (24) and Mike Person, right, celebrate a touchdown by Freeman during the second half of an NFL football game against the Dallas Cowboys on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)

Dallas Cowboys' Nick Hayden (96) walks to the sideline as Atlanta Falcons' Julio Jones, rear, and Devonta Freeman (24) celebrate a touchdown by Jones during the second half of an NFL football game Sunday, Sept. 27, 2015, in Arlington, Texas. Umpire Ruben Fowler (71) walks the ball back downfield. (AP Photo/Michael Ainsworth )

Atlanta Falcons quarterback Matt Ryan (2) takes off running from the line scrimmage as Dallas Cowboys' Nick Hayden (96) and Demarcus Lawrence (90) give chase during the second half of an NFL football game on Sunday, Sept. 27, 2015, in Arlington, Texas. (AP Photo/Michael Ainsworth)