Seeking help in the bullpen, the Brewers acquired left-handed pitcher Ray King from Washington today in exchange for a player to be named later.

The team also purchased the contract of catcher Mike Rivera from Triple-A Nashville and transferred infielder Tony Graffanino to the 60-day disabled list.

King, 33, pitched for the Brewers from 2000-2002. In his nine-year career, the situational lefty has posted win-loss record of 20-23, and holds a 4.54 ERA.

King will wear No. 45. Rivera will wear No. 11.

Both will likely be in uniform tomorrow.