DAVIE, Fla. (CBSMiami.com) – The Miami Dolphins continue preparing for Sunday’s game against the Oakland Raiders. Wednesday, they made roster moves they hope will fortify the team down the stretch.

The Dolphins announced the signings of defensive tackle Ryan baker and offensive guard Ray Feinga. To clear space for the duo, the Fins released defensive tackle Igor Olshansky and kicker Shayne Graham.

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Graham had been signed and played for two weeks while starting kicker Dan Carpenter was recovering from an injury. Graham missed a kick last week against the Dallas Cowboys that could have changed the course of the game.

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Baker was previously signed to the Dolphins and was on the roster for the first three weeks of the 2011 season.

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Feinga has been on the Dolphins practice squad for three-quarters of the season.