The Cowboys also placed LB Justin March on injured reserve and promoted RB Sewo Olonilua, CB Chris Westry, and OL Jordan Mills from the practice squad.
Dallas recently designated Diggs as a player to return. (NFLTR)
Diggs, 22, was drafted in the second round out of Alabama by Dallas in 2020. He signed a four-year, $6.32 million rookie deal that included a $2.157 million signing bonus.
In 2020, Diggs appeared in nine games for the Cowboys and recorded 48 total tackles, one sack, a forced fumble, two interceptions and 10 pass defenses. Pro Football Focus had him rated as the No. 53 cornerback out of 116 qualifying players.