The Blue Jays traded Jansen to the Red Sox on Saturday in exchange for infielders Cutter Coffey and Eddinson Paulino and right-hander Gilberto Batista.
Jansen has split catching duties with Alejandro Kirk this season, logging 228 plate appearances across 61 games. Jansen has had a down season at the plate, posting his worst OPS (.672) and ISO (.157) since 2020 with a .212 batting average. He'll likely notice a decrease in playing time with the Red Sox, as Connor Wong is in the midst of a career season behind the dish with an .802 OPS. Instead, Jansen will likely supplant Reese McGuire as Wong's top backup, though Jansen could also see some at-bats at designated hitter.