A set of Sunday workouts for the Commanders quickly resulted in a deal being worked out for linebacker Duke Riley. More signings have taken place on Monday. 
The Riley deal is now official, per the team. It was also announced that cornerbacks Essang Bassey and Antonio Hamilton have been signed. Both of them took part in yesterday’s workout, as noted by The Athletic’s Nicki Jhabvala.
Bassey has spent his entire career in the AFC West to date, bouncing between the Chargers and Broncos. The 26-year-old has 43 appearances and five starts to his name, and he will spend the coming weeks looking to carve out a special teams role. Hamilton, like Bassey, joined the NFL as an undrafted free agent but he has managed to stay in the league for nine years. Hamilton has made 18 starts (nine of which came with the Cardinals in 2023) but with 190 games to his name he will add experience to Washington’s secondary.
In corresponding moves, edge rusher Viliami Fehoko, cornerback Allan George and linebacker Dominique Hampton have been waived. Hampton was a fifth-round pick last year, so even though he made just one appearance as a rookie it is somewhat surprising to see him let go at this point. All three players will now hit the waiver wire; provided they go unclaimed, each will become a free agent.
The Commanders also placed offensive tackle Lucas Niang on injured reserve, ending his season. Head coach Dan Quinn announced yesterday (via JP Finlay of NBC Sports) that Niang suffered an ACL tear. The former Chief signed with Washington this spring and was set to handle a backup role along the offensive line. Now, that unit’s depth will take a hit behind Laremy Tunsil, Andrew Wylie and first-round rookie Josh Conerly Jr. Veteran cornerback/special teamer Kevon Seymour was also moved to IR on Monday. Unless he is released via an injury settlement, his season is over as well.