Another roster move. Also, Jeremy Brown has been designated for assignment.

OAKLAND, Calif. - The Oakland A's today selected right-handed pitcher Colby Lewis from Triple-A Sacramento and placed right-handed pitcher Justin Duchscherer on the 15-day Disabled List retroactive to May 15 with a right hip strain.  To clear a spot for Lewis on the 40-man roster, the A's have designated catcher Jeremy Brown for assignment.

Lewis was signed by the A's to a minor league contract on March 24 after he was released by Washington on March 19 and is scheduled to start for the A's tonight in Chicago.  The 27-year old right-hander was 5-1 with a 2.31 ERA in eight games, all starts, with Sacramento, and was tied for the Pacific Coast League lead in wins while ranking second in ERA and third in strikeouts (47).  Lewis pitched parts of three seasons with Texas from 2002-04 and one season with Detroit in 2006.  He has a 12-13 record and a 6.76 ERA in 46 career Major League appearances, 33 starts.

Duchscherer was 3-3 with a 4.96 ERA in 17 relief appearances for the A's this year.  This is his second career stint on the Disabled List as he was also on the DL last year from May 7 to June 23 with right elbow tendinitis.

Brown was batting .235 with one home run and seven RBI in 14 games at Triple-A Sacramento.  He made his Major League debut with the A's last year and went 3 for 10 (.300) with two doubles in five games.

The A's have now used the Disabled List 11 times this year and currently have nine players on the DL.  Oakland used the DL 15 times last year, which was the most times the A's used the DL since they used it 21 times in 1997.  This marks the first time the A's have had at least nine players on the DL at one time since August 27-29, 1997 when they had 11 players on the DL.  The 11 players on the DL this year have combined to miss 239 games.