Dallas Cowboys offensive tackle Tyler Guyton suffered a bone fracture in his knee Monday and is expected to miss four-to-six weeks, according to ESPN's Todd Archer.

The Cowboys got positive news from the MRI after reportedly fearing Guyton tore his ACL. He went down for several minutes at practice before being helped off the field by trainers.

Guyton was projected to be Dallas' starting left tackle for the 2025 season after being selected in the first round of the 2024 draft. He played in 15 games for the Cowboys as a rookie, allowing six sacks and 26 pressures in 202 pass-blocking snaps, according to PFF.

The Oklahoma product's ailment adds to a tough week for Dallas across the offensive line. Robert Jones, who was set to be a backup guard after joining the team this offseason, suffered a back injury Sunday that's expected to sideline him for two to three months.

Asim Richards, Hakeem Adeniji, Matt Waletzko and sixth-round rookie Ajani Cornelius are the backup offensive tackles on the roster.