Biegel sustained a torn left Achilles during Tuesday's practice, Josh Tolentino of The Athletic reports.
Biegel will almost certainly be required to miss the entire 2020 campaign due to the severity of his injury. It's a brutal blow for the 27-year-old, who notched 59 tackles, 2.5 sacks and one interception in 2019, a season which appeared to signify a step forward in his career. He's on track to hit free agency in 2021.