Rainey agreed to a one-year, $1.5 million contract with the Nationals on Tuesday, avoiding arbitration, Mark Zuckerman of MASNSports.com reports.
The 30-year-old righty missed almost all of 2023 on the road back from Tommy John surgery, but he tossed a scoreless inning against Atlanta on Sept. 30 and averaged 96.3 mph with his fastball. He should work in a setup role for Washington in 2024.