Losing a game to a division rival is hard. But for the Cowboys, losing one of their best linebackers might be the hardest thing to overcome after Sunday’s loss to the Eagles.

While every question has its merit – and believe it, we enjoy answering every one of them, so keep sending them in to playbook@nfl.com or via Twitter at #askplaybook – only a special kind of question can launch us into a raging debate. That question starts or ends with “why?”

As we will highlight in our “Tale of the Tape” this week — the Giants versus the Bills — we take particular interest in if and how a defense can get to the quarterback.

A one-liner look at the latest injury updates from around the league in Week 15.

An updated look at some of the notable injuries around the league in Week 15.

The Cowboys have ruled out starting FS Gerald Sensabaugh and rookie LB Sean Lee out of Sunday’s game against the Redskins due to concussions.

The season will crumble for the Dallas Cowboys if they can’t protect QB Tony Romo and open holes for the running game.

Tom Brady reported to Patriots training camp with the team’s rookies Sunday, according to The Boston Globe. Brady and the Patriots also have begun discussing a contract extension.

Penn State’s pro day speaks for itself. A number of highly touted prospects worked out, and most of them posted outstanding numbers. The event was held indoors on FieldTurf in front of 25 team representatives. Both of the 40-yard dashes were run in the same direction, and some eye-opening times were recorded.