The Nationals recalled Perales from Triple-A Rochester on Wednesday.
House is out of the lineup for Wednesday's game against the Rockies.
Ruiz is out of the lineup for Wednesday's game against the Rockies.
Soto (calf) took live batting practice at Citi Field on Wednesday, Chelsea Janes of SNY.tv reports.
Alvarez (2-6) took the loss Tuesday, giving up three runs on five hits and two walks over 4.2 innings as the Nationals fell 3-1 to the Rockies. He struck out six.
Lord struck out two and allowed one walk and no hits over 2.1 innings of relief in Tuesday's 3-1 loss to the Rockies.
Robert went 2-for-4 with a solo homer during Tuesday's 3-2 extra-inning win over Milwaukee.
Robert went 2-for-4 with a solo homer during Tuesday's 3-2 extra-inning win over Milwaukee.
Lindor went 2-for-4 with a solo home run during the Mets' 3-2 extra-inning win over the Brewers on Tuesday.
Thornton allowed one run on seven hits while striking out four across six innings in a no-decision during Tuesday's 3-2 extra-inning loss to the Mets.
