Nationals signed RHP Dan Haren to a one-year, $13 million contract.
James McDonald (shoulder) will begin a rehab assignment with Double-A Altoona on May 27.
Mark Ellis (quad) could be activated prior to Sunday's game.
Aramis Ramirez (knee) is not in the Brewers' lineup Sunday.
Stephen Drew (back) is sitting out for the second straight game Sunday.
Michael Cuddyer (neck) expects to be activated from the disabled list on Friday when first eligible.
Elvis Andrus went 5-for-5 with two RBI to help the Rangers beat the Tigers 7-2 on Saturday night.
David Ortiz was 3-for-4 with two homers and six RBI in Boston's 12-5 rout of the Twins on Saturday.
Brandon McCarthy threw a three-hit shutout as the Diamondbacks beat the Marlins 1-0 on Saturday.
The Rays have officially announced that Jake Odorizzi will be Monday's starter against the Blue Jays.
Jim Johnson blew his second consecutive save in epic fashion Saturday as the Orioles fell to the Rays.
Joey Votto went 4-for-4 with a home run and two RBI in Saturday's 10-0 defeat of the Phillies.