The Cowboys have been hit hard by injuries in their secondary, which is why they had four defensive backs in town for practice.
They worked out defensive backs Juanyeh Thomas, Alex Austin, Shemar Bartholomew and Tyrek Funderburk as well as linebacker Germaine Pratt on Tuesday.
They are signing Austin, a cornerback, to the practice squad, according to Matt Zenitz of CBS Sports. They are also signing Thomas, a safety, according to Jordan Schultz of The Schultz Report. It is unclear whether Thomas is signing with the active roster or the practice squad.
Austin, a 2023 seventh-round pick of the Bills, has played games for the Patriots and Texans. He has played in 29 games with six starts and has 31 tackles, eight passes defensed and one interception.
Thomas signed with the Cowboys as an undrafted free agent in 2022. He has appeared in 36 games, recording 62 tackles, five passes defensed and one forced fumble.
Cowboys safeties Malik Hooker (broken forearm) and PJ Locke (leg) are on injured reserve and Jalen Thompson (hamstring) will go there this week. Cornerbacks Shavon Revel (knee/ankle) and Cobie Durant (snail) are also injured.
