The contracts were finalized Monday. Pelfrey agreed more than a week ago to an $11 million, two-year deal. Suzuki agreed Friday to a $2.75 million, one-year deal.
Pelfrey went 5-13 with a 5.19 ERA in 29 starts last season, his first after Tommy John ligament replacement surgery on his elbow. He'll return to the rotation with Kevin Correia, with Ricky Nolasco and Phil Hughes now at the top. One spot will be open in spring training.
To make room on the 40-man roster, the Twins sent outfielder Darin Mastroianni outright to Triple-A Rochester.