The Nationals are expected to recall Perales from Triple-A Rochester on Wednesday, Kyle Williams of TheBanner.com reports.
The Nationals optioned Bird to Triple-A Rochester following Tuesday's game against the Rockies.
Waldron will serve as the opening pitcher in Wednesday's game against Colorado, Mark Zuckerman of NatsJournal.com reports.
Chaparro is absent from the lineup for Tuesday's contest against the Rockies.
Stowers is out of the lineup for Tuesday's game against the Red Sox
Ruiz is absent from the lineup for Tuesday's contest versus the Rockies.
The Marlins recalled Fulton from Triple-A Jacksonville on Tuesday.
The Marlins placed Fairbanks on the 15-day injured list Tuesday with right medial nerve irritation.
The Nationals designated Williams for assignment Tuesday.
Faucher could be part of a closing committee for the Marlins if Pete Fairbanks (hand) requires another IL stint, Christina De Nicola of MLB.com reports.
