Update on RHP Mark Leiter Jr. By | August 2, 2025 Today, RHP Mark Leiter Jr. commences a rehab assignment with Double-A Somerset. More from MLB.com Yankees Re-Sign RHP Paul Blackburn GUARDIANS SIGN 22 PLAYERS TO OPEN2026 INTERNATIONAL SIGNING PERIOD Press Release: Brewers Sign 22 International Free Agents Mariners 2026 International Signings D-backs Agree to Terms with RHP Taylor Clarke