Chicago Cubs' Mark Leiter Jr. throws during a spring training

Mark Leiter Jr. - Chicago Cubs Relief Pitcher - ESPN

1,305 Mark Leiter Baseball Stock Photos, High-Res Pictures, and Images - Getty Images

1,305 Mark Leiter Baseball Stock Photos, High-Res Pictures, and Images - Getty Images

The origin of Mark Leiter Jr.'s splitter and how he became a weapon in Cubs bullpen - Marquee Sports Network

Chicago Cubs on X: The #Cubs today recalled LHP Locke St. John from @IowaCubs and optioned RHP Mark Leiter Jr. to Iowa. / X

The origin of Mark Leiter Jr.'s splitter and how he became a weapon in Cubs bullpen - Marquee Sports Network

Cubs re-sign Mark Leiter Jr. - On Tap Sports Net

Chicago Cubs' Mark Leiter Jr. throws during a spring training baseball workout Wednesday, Feb. 15, 2023, in Mesa. (AP Photo/Morry Gash Stock Photo - Alamy

Cubs: Mark Leiter miraculously stays in game after terrifying fall

Cubs Planning To Select Mark Leiter Jr. - MLB Trade Rumors

Mark Leiter Jr. Rejoins Cubs on Minors Deal - Cubs Insider