Micah Parsons' much-anticipated return to Dallas to face his former Cowboys teammates ended with a 40-40 tie .

The Cowboys' Brandon Aubrey and Green Bay's Brandon McManus traded short field goals in overtime Sunday night, and Parsons’ only sack played a role in keeping Dallas out of the end zone in the extra period. It was the second time the Cowboys played into overtime this season and another showcase for the league's tweak of its overtime rule.

What is the overtime rule for this season?

The league approved a proposal to make regular-season overtime more like the postseason, with both teams getting a chance at a possession, even if the team that gets the ball first scores a touchdown.

The NFL instituted regular-season overtime in 1974, adding a 15-minute sudden-death period that en

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