The midnight deadline passed without the Nationals coming to terms with any of their remaining free agents.
As a result, as of 12:01 a.m., first baseman Adam Dunn, right-hander Miguel Batista and outfielders Willie Harris and Kevin Mench are free to negotiate and sign with any major league club.
Neither Dunn nor general manager Mike Rizzo responded to messages left Saturday asking whether any headway had been made in negotiations between the parties. Dunn wants a four-year deal, but the Nationals have offered no more than three years.
This is the first year of a rules change that shortened teams' exclusive negotiating window with free agents from 15 days after the conclusion of the World Series to five days.