Who said Jacobs has lost a step?

EAST RUTHERFORD, N.J. -- It didn't take the Giants long to respond to Roy Williams' second touchdown catch of the game. Eli Manning dropped a pass off to Brandon Jacobs, who raced down the sideline for a 74-yard touchdown. Cowboys linebacker Bradie James couldn't make up any ground on Jacobs and then the running back ran through a Gerald Sensabaugh arm tackle.

The Cowboys have challenged the play, contending that Jacobs stepped out of bounds when he was hit by Sensabaugh. For now, Giants are on top, 20-17.

Update: The call has been upheld and the Giants lead, 21-17.