He is on the books of RB Leipzig U16 and wears shirt number 14. His main role on the pitch is Defender. His stronger foot is Left.

His latest transfer saw him join RB Leipzig U17 from RB Leipzig Youth via on 2025-07-01.

Across the Shanghai Future Star Cup 2025, Constantin Sandkoetter appeared in 5 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.