The A's designated infielder Steve Tolleson for assignment to make room for Brian Fuentes on the 40-man roster, the team announced.
Tolleson made his major league debut last year, batting .286/.340/.408 in 53 plate appearances. The 27-year-old spent most of the season at Triple-A Sacramento, where he hit a robust .332/.412/.503 in 339 plate appearances. The 2005 fifth round selection has extensive minor league experience at second and short, plus some experience at third base and in the outfield.
