The Dallas Cowboys' blistering start to the season just hit its first major road block ... the team's best cornerback, Trevon Diggs, tore his ACL on Thursday -- almost certainly ending his 2023 season.
According to multiple reports, Diggs suffered the serious knee injury during 1-on-1 drills at Cowboys practice ... and was seen on crutches afterward.
Several minutes later ... he took an MRI, and the results reportedly revealed the torn ligament.
Diggs had been playing an All-Pro level for the 'Boys in their first two games of the year .