​It's a tough day for the Dallas Cowboys.





No matter how long ago you played, when you play for the Cowboys, you join the family for life. The fanbase will always be behind you and there to support you; it's just the Cowboy way.





Unfortunately, the team and fanbase need to be there in trying times right now. Tony Liscio, who spent eight years protecting Roger Staubach's blindside and won a Super Bowl with the team in 1972, has passed away after a battle with ALS.

Tony Liscio, ex-Cowboy who protected Roger Staubach's blind side, dies at 76 after battling ALS https://t.co/ZX7wltBlJw pic.twitter.com/nyDPYYIQri — SportsDay Cowboys (@dmn_cowboys) June 19, 2017

​​Liscio, who was originally drafted by the Packers, was traded to the Cowboys early in his career, and then spent the rest of his years in the NFL as a core member of the Dallas offensive line, ultimately helping them win Super Bowl VI.





Former Cowboys executive Gil Brandt reflected on making the decision to trade for him and make him a Cowboy.

Condolences to the Liscio family. I traded for Tony in 1964 for 5th-round pick. Started 8 yrs for us. Another good man lost way too soon. https://t.co/qAOtBja6bO — Gil Brandt (@Gil_Brandt) June 19, 2017

​​Clearly, he left an impact on the members of the team during his time there.





Some may remember a few years back that Liscio actually suffered a heart attack while taking part in training camp with the Cowboys, visiting the team and checking out the new facilities. Fortunately, he was alright after the scare, but spent the following years battling ALS.

Tony Liscio's wife, Annette, had saved a letter we sent Tony in 1962, before he was drafted by Packers. She recently sent it to me. pic.twitter.com/N5sLg42jnY — Gil Brandt (@Gil_Brandt) June 19, 2017

​​Rest in peace to a true Cowboys legend.