The Brewers acquired utility player Jerry Hairston Jr. from the Nationals on Saturday.
In exchange, Washington received minor league outfielder Erik Komatsu.
"Jerry is a valuable addition to our ball club with the injures to Carlos Gomez and Rickie Weeks," Brewers general manager Doug Melvin said.
"He is a versatile player who has experience at every position except catcher and pitcher. He also provides an energetic and veteran presence."
Brewers Get Hairston Jr. From Nats