Joseph exited practice Wednesday with a back injury, Clarence E. Hill Jr. of the Fort Worth Star-Telegram reports.
The 2021 second-round pick out of Kentucky played mostly on special teams in 2022, but stepped into a larger role late in the season and started opposite of Trevon Diggs. With the Cowboys bringing aboard Stephon Gilmore in a trade with the Colts in March, Joseph will likely move back into a reserve role to open the 2023 campaign.