The Cowboys signed Harmon to a contract Saturday, Todd Archer of ESPN.com reports.
Harmon is one of two receivers Dallas signed Saturday in the wake of top wideout CeeDee Lamb's holdout. The 26-year-old Harmon last played in the NFL for Washington in 2019, when he caught 30 passes for 365 yards and no touchdowns over 16 games. Harmon tore his ACL in July of 2020 and had been working with Washington's practice squad since recovering the following June.