SUNDAY, 12:01pm: The Nationals have officially announced that Johnson will manage the team for the rest of the season, according to a press release. Johnson also agreed to a three-year consulting contract, so while he won't necessarily manage the team past 2011, he'll remain in the organization and will play a role in the hiring of his successor.
SATURDAY, 11:50am: MLB.com's Bill Ladson reports that the Nationals will announce the hiring today (Twitter link). Interim manager John McLaren is managing the team today according to Mark Zuckerman of Nats Insider.
FRIDAY, 10:45pm: Johnson's contract runs through 2013, according to Jon Heyman of SI (via Twitter).
9:47pm: The Nationals will name Davey Johnson as their new manager, a source familiar with the situation tells Nick Friedell of ESPNChicago.com. The 68-year-old will manage the team for the rest of the season and next season, pending league approval.
Johnson's first game as manager will be Sunday afternoon when the Nats wrap up a three-game series with the White Sox, a source told ESPNChicago.com's Bruce Levine. An official announcement could come as soon as tonight.
Johnson, who is a senior adviser with the Nationals, last managed in the majors in 2000 for the Dodgers but served as the skipper for the United States baseball team in 2003. Johnson won a World Series in 1986 as the manager of the New York Mets and has a career MLB managerial record of 1148-888.