Dallas Cowboys Pro Bowl cornerback Trevon Diggs will reportedly miss the rest of the 2023 season after tearing the ACL in his left knee during Thursday's practice. 

NFL.com reports that an MRI confirmed the extent of the injury, which Diggs sustained during a one-on-one drill. The fourth-year standout was later spotted on crutches at the Cowboys' training facility, according to the Dallas Morning News.

Diggs' absence is a major blow to a Dallas team that's outscored the opposition by a 70-10 margin in winning its first two games. The 25-year-old's 18 interceptions since entering the NFL in 2020 are tied for the most by any player over that span. 

A second-round pick by Dallas in 2020, Diggs earned first team All-Pro honours in 2021 by recording a league-leading 11 interceptions, the most by any player in a single season since the Cowboys' Everson Walls also had 11 in 1981.

Diggs was off to another strong start in 2023, as he allowed just two completions on nine pass attempts thrown his way for a total of 26 yards to go along with one interception.

"Saw that I guess a couple of you saw (Diggs injured) out there on the field," Cowboys quarterback Dak Prescott told reporters following Thursday's practice. "Prayers, hoping for the best, simple as that.”

Diggs had just signed a five-year, $97 million extension in training camp that will keep him under contract through the 2028 season. 

The Cowboys do have depth at cornerback after acquiring 2019 NFL Defensive Player of the Year Stephon Gilmore from the Indianapolis Colts in March to form a trio with Diggs and DaRon Bland, the team's leader with five interceptions in 2022.

Dallas could move Bland from the slot into Diggs' outside position with Jourdan Lewis taking over the nickel role. Lewis started 30 games over the previous three seasons, but has been eased into action in 2023 due to a foot injury that limited him to just six games last season.