Carrick must start Andrey Santos alongside Baleba for Man Utd vs Atletico Madrid

Manchester United manager Michael Carrick must start Andrey Santos alongside Carlos Baleba in midfield for Tuesday's Champions League match against Atletico Madrid, with Kobbie Mainoo ruled out through injury. Mainoo and Luke Shaw did not travel to Spain due to knocks from Saturday's 1-1 draw with Tottenham, while Noussair Mazraoui, Patrick Dorgu, and Benjamin Sesko remain unavailable. Santos, a £50m summer signing, has played just 175 minutes this season, and Carrick has said no player is guaranteed a starting place. United have won only two games all season and were held by ten-man Tottenham despite leading in stoppage time. With Mainoo absent, the Brazilian's athleticism and ball-carrying ability could address the team's struggles in transition and duels.