Royals acquired RHP Mason Black from the Giants for RHP Logan Martin.
There was some hope that Black, who was DFA’d Thursday, would turn into a mid-rotation starter a couple of years back, but he went just 1-5 with a 6.47 ERA in eight starts and two relief appearances with the Giants the last two seasons, and his formerly impressive minor league strikeout rates have really fallen off (29% in 2022, 30% in 2023, 24% in 2024, 21% in 2025). He has an option left and the Royals have ample starting pitching depth, so Black figures to open 2026 back in Triple-A.