Sean Lee Injury: Cowboys lose star linebacker for season with torn ACL

[UPDATE 10:45 PM EDT: It is official. The Dallas Cowboys have lost star linebacker Sean Lee for the season with a torn ACL suffered Tuesday during the team's first OTA.]

Can confirm the cowboys initial fear, per sources, Sean lee has torn acl and will be lost for season

— Clarence Hill (@clarencehilljr) May 28, 2014

New York Giants fans know all too well about injuries, and how they can happen in the most innocent of 'non-contact' situations. During the first OTA of the year for the Dallas Cowboys on Thursday, star middle linebacker Sean Lee was assisted off the field with what appeared to be a left knee injury.

Sean Lee swearing as he is helped to the trainers room as pictures are being taken. "Bleep me," he says. pic.twitter.com/lMOZKgG71O

— Calvin Watkins (@calvinwatkins) May 27, 2014

Sean Lee was helped off the field by two trainers after being blocked to the ground by zach martin. He let off string of profanities

— Clarence Hill (@clarencehilljr) May 27, 2014

Lee is the best player on a weak Dallas defense that simply can't afford to lose him.

Per source, #Cowboys owner Jones "looked nauseous" when he talked about the linebacker landscape after Lee's injury.

— Blogging The Boys (@BloggingTheBoys) May 27, 2014

The extent of Lee's injury is not yet known. The linebacker was reportedly undergoing an MRI Tuesday afternoon. We will update when we know the severity.

Sean Lee to have MRI to determine severity of left knee injury. League source tells me team fears injury is serious one.

— Ed Werder (@Edwerderespn) May 27, 2014

Cowboys fear LB Sean Lee tore his ACL today during OTAs, will undergo MRI later today.

— NFL Access (@NFL_Access) May 27, 2014

You can see Lee get injured here. OTAs are supposed to be non-contact, which makes it sort of hard to justify or explain what basically amounts to a pancake block by Martin.

The Giants, of course, lost fullback Henry Hynoski during the team's first OTA a year ago. He suffered a knee injury that knocked him out for the entire preseason when he bumped into another running back.

The Giants begin OTAs on Wednesday. As happy as you will be to see some actual live action, this is just a reminder to keep your fingers crossed that the Giants come through the week unscathed.