Stopping the NFL's seventh ranked offense isn't an easy thing to do, stopping the NFL's seventh-ranked offense without your best defensive player is almost impossible and the Cowboys learned that the hard way in their 49-17 loss to New Orleans on Sunday.
Lee injured his left hamstring on what looked like a routine tackle. On a first-and-10 play for the Saints, Drew Brees threw a short pass over the middle to Pierre Thomas. Lee went up to make the tackle on Thomas and it looked like his leg got twisted as he went to the ground.
Lee tried to walk off the field on his own, but fell to the ground before he could get to the sideline. The fourth-year linebacker ended up being taken to the Cowboys locker room with just under 14 minutes left in the second quarter.
After the game, Cowboys owner Jerry Jones said he was 'very concerned' about Lee.
The loss of Lee is a big one for the Dallas defense. Going into Week 10, Lee was tied for the NFL lead in both tackles (90) and interceptions (4). Without Lee, the Dallas defense ended up surrendering a franchise-record 625-yards to the Saints. New Orleans also picked up an NFL-record 40 first downs in the game.
Whether Lee takes three or four weeks to heal, he'll most likely miss two games either way. The Cowboys have a Week 11 bye before playing two games in four days because of Thanksgiving. The 27-year-old linebacker signed a six-year extension with the Cowboys in August.