IRVING (October 30, 2012) -- The Dallas Cowboys now must try to keep their season from slipping out of reach.

They were so close to being within a half-game of the NFC East lead and having a vital tiebreaker. But they missed a season sweep of the division-leading New York Giants (6-2) by the length of Dez Bryant's fingertips.

Coach Jason Garrett said Monday there's a tremendous amount of urgency for Dallas (3-4) going into Sunday night's game at Atlanta (7-0), the NFL's only undefeated team.

The Cowboys trailed 23-0 in their 29-24 loss Sunday to New York. They almost had an unprecedented comeback win, but Bryant's apparent leaping 37-yard TD catch with 10 seconds left was overturned by a replay that showed his hand hit out of bounds first.