Oakland A's Jersey Help

[intheminors]

Guys,

I just acquired a 2003-2005 Oakland A's batting practice jersey from ebay. I matched it on Bill Henderson's style guide to those years. However, it has #9 on the back. I checked on Baseball Almanac and there was no #9 on the Opening Day Roster any of those years. Anyone have a clue who might have worn this?



Thanks in advance for any help you might be able to provide.

Kyle