Sean Lee suffers torn left ACL

The Cowboys' chief concern right now is the health of linebacker Sean Lee, who suffered a knee injury at today's Organized Team Activities. But the Cowboys also need to be concerned about what the league and the NFL Players Association have to say 

Could Jonathan Vilma be the one to replace injured Dallas linebacker Sean Lee? (Scott Iskowitz/AP). Sean Lee may be the most irreplaceable part of the Dallas defense, so his ACL injury Tuesday during the team's first OTA 

The Cowboys' chief concern right now is the health of linebacker Sean Lee, who suffered a knee injury at today's Organized Team Activities. But the Cowboys also need to be concerned about what the league and the NFL Players Association have to say 

a torn ACL on Tuesday.Tags: Sean Lee, Adam Schefter, Dallas Cowboys · Dallas Cowboys middle linebacker Sean Lee has a torn ACL and a slight tear in his meniscus, injuries that are expected to sideline him for the 2014 season, according to sources.

UPDATE (Wednesday, 10:30 a.m. ET): According to multiple reports, Sean Lee suffered a torn ACL during OTAs on Tuesdays. He's likely to miss the 2014 season.