The article on ESPN says:
"The contract will start in 2023 and extend through the 2033 season, sources said. The one-year, $17.5 million contract Devers signed earlier in the week to avoid arbitration will be superseded by the long-term deal."
https://www.espn.com/mlb/story/_/id/35380017/rafael-devers-boston-red-sox-finalizing-11-year-331m-extension
That would be somewhat surprising and contradicts earlier reports.
"The contract will start in 2023 and extend through the 2033 season, sources said. The one-year, $17.5 million contract Devers signed earlier in the week to avoid arbitration will be superseded by the long-term deal."
https://www.espn.com/mlb/story/_/id/35380017/rafael-devers-boston-red-sox-finalizing-11-year-331m-extension
That would be somewhat surprising and contradicts earlier reports.