The Dolphins have signed DT Ryan Baker and OG Ray Feinga and waived DT Igor Olshansky and PK Shayne Graham, the team announced Wednesday.
Baker, in his third season from Purdue, has one tackle in two games with the Dolphins this season. Feinga played in two games last season with the Dolphins.
Olshansky has seven tackles in eight games this season. Graham made 4-of-5 FG attempts while Dan Carpenter was out.