Selected in the fourth round of the 2022 draft out of a Maryland high school, the catcher has battled a few injuries in the early portion of his pro career. The son of Seattle Seahawks defensive end Lamar King, a first-round draft choice in 1999, King Jr. had shoulder and concussion issues that limited his time behind the plate, putting him at designated hitter and first base.

But he was healthy in 2025 and played in 105 games, 22 more than he had in the previous two seasons combined. King flashed a lot of offensive potential, putting up a .286/.370/.408 slash line with four homers and 37 RBIs and 18 steals at Low-A Lake Elsinore. That earned him a promotion to High-A Fort Wayne, where he had a .233/.289/.300 slash line in 24 games. He also has a nice arm behind the plate.

The potential of the 22-year-old earned him a ticket to the Arizona Fall League prospect showcase, and he turned in a slash line of .255/.397/.294 in 17 games. While he shows a natural ability to go the opposite way, the right-handed hitter's size (6-foot-3, 215 pounds) would portend more power, but that could come as he moves up the organizational ladder. The speed also adds to his potential and could be maintained if he moves out from behind the plate.

With Ethan Salas likely to begin 2026 at Double-A San Antonio, King probably returns to Fort Wayne to begin the season with the chance to move up if he evolves further with the bat in his hands.