Scandrick was designated a post-June 1 cut, which will free $3 million in cap space in 2018. He will count $1.6 million against the cap in 2019. The Cowboys will not receive the $3 million credit until June.
Scandrick requested his release from the team, sources said. He will visit the Washington Redskins on Sunday, the first of what could be a number of trips, according to a source.
At the end of last season, Scandrick thought his time with the Cowboys was coming to an end, with the team using rookies Chidobe Awuzie and Jourdan Lewis at outside cornerback and safety Xavier Woods in the slot, as he dealt with a back injury. The Cowboys also intend to move Byron Jones back to cornerback in 2018 after he started the past two seasons at safety.
Scandrick joined the Cowboys as a fifth-round pick in 2008 and outperformed their first-round pick from that year, Mike Jenkins. He served as a slot corner his first five seasons, becoming one of the best interior defenders in the league. He moved into a full starting role in 2013. Injuries took their toll in recent years, with the most severe a knee injury that cost him the 2015 season.
At last year's draft, the Cowboys and New Orleans Saints talked about a deal involving Scandrick and safety Kenny Vaccaro, but neither team pulled the trigger. The Saints continue to have a need for a cornerback and could go after Scandrick again.
ESPN's Todd Archer contributed to this report.