The Oakland Raiders and running back Isaiah Crowell reached agreement on a one-year deal worth up to $2.5 million, a source told ESPN's Adam Schefter.
Doug Martin and Marshawn Lynch, who finished first and second for the Raiders in rushing yards last season, are both free agents. The Raiders currently have four running backs on their roster: Jalen Richard, DeAndre Washington, Chris Warren III and James Butler.
Crowell's addition likely ends any chance Martin will return to the Raiders. Coach Jon Gruden said Tuesday at the NFL meetings that tdoor was "always open" for Lynch to return.