Devastating news for the Dallas Cowboys ... star offensive lineman Tyron Smith is set to undergo season-ending surgery for a scary neck injury.
Head coach Mike McCarthy made the announcement Friday ... and it's massive -- with some believing this move alone could end Dallas' hopes of a Super Bowl.
Tyron is considered one of the best left tackles in the sport ... and is widely viewed as a future Hall of Famer.
And, with the Cowboys already missing star right tackle La'el Collins due to a hip injury ... it ain't exactly like the team has depth to replace him.
Dallas is no stranger to missing Tyron from its lineups ... he's battled neck and back issues in the past -- but the Cowboys have notoriously struggled in games he hasn't played in.
As for Tyron's future post-surgery ... it's unclear if this could put his playing days in jeopardy.
The 6'5", 312-pound lineman is only 29 years old ... but he's already played in 133 career games and made 7 Pro Bowls.
Smith signed an 8-year, $97 MILLION contract with the Cowboys back in 2014.
Get well soon!
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