The Colts signed free agent tackle Andrew McDonald and cut tight end Weslye Saunders, Aaron Wilson of the National Football Post reports.
McDonald played in two games with the Seahawks this season before being signed to their practice squad. He was released in November.
McDonald was originally signed by the Dolphins as an undrafted free agent out of Indiana University in 2012 and also spent time with the Panthers last season.
Saunders played in one game for the Colts this season.