According to multiple reports, Guyton has a broken bone in his right knee that will not require surgery and he could miss four to six weeks. The Cowboys open the season at the Philadelphia Eagles on Sept. 4, meaning a recovery on the longer end of that timeframe would put Guyton's availability in question for that NFC East game.

Since then, things have changed drastically: The fear of losing Guyton for the year was just that. Irrational fear. Minutes later, ESPN's Todd Archer bore the good news: The Cowboys left tackle's ACL is intact.

Tyler Guyton was feared to have suffered a torn ACL at Cowboys training camp Monday. However, an MRI revealed the ligament is intact.