The Oakland Athletics optioned left-hander Gio Gonzalez, infielders Daric Barton, Cliff Pennington and Jack Hannahan and outfielder Chris Denorfia to Triple-A Sacramento after Saturday's 3-2 win over San Francisco.

The A's, who open their season against the Los Angeles Angels in
Anaheim on Monday night, finalized their 25-man roster by officially adding pitchers Brett Anderson, Andrew Bailey and Trevor Cahill.

Oakland's projected opening day starter Justin Duchscherer and right-hander Joey Devine, expected to share the closer's role with Brad Ziegler, will open the season on the disabled list along with Rule 5 outfielder Ben Copeland.

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