The Athletics bolstered their bullpen with a veteran arm.
Right-handed relief pitcher Mark Leiter Jr. agreed to a contract with the Green and Gold, The Athletic’s Ken Rosenthal reported Thursday, citing a source.
The contract is for one year and around $3 million, ESPN’s Jesse Rogers reported shortly after, citing sources.
As others have reported, free agent pitcher Mark Leiter Jr is in agreement with the A’s on a contract. It’s for 1-year at around $3 mil, sources tell ESPN.
— Jesse Rogers (@JesseRogersESPN) December 11, 2025
The 34-year-old Leiter, whose uncle is former MLB All-Star pitcher Al Leiter, is a six-year veteran who pitched for the Philadelphia Phillies, Toronto Blue Jays, Chicago Cubs and New York Yankees from 2017-2025.
In 270 career appearances (15 starts), Leiter Jr. posted a 4.60 ERA with 396 strikeouts and 131 walks in 352 1/3 innings pitched.
Now he joins an Athletics bullpen that ranked 24th with a 4.53 ERA last season.