He currently plays for RB Leipzig U19, wearing the number 5 shirt. He plays primarily as a Defender. His preferred foot is Right. His current market value is estimated at 50K €.

His most recent move was a from RB Leipzig U19 to SC Paderborn 07 II on 2025-06-30.

Throughout the German Regionalliga 2025-2026, Lenny Hennig featured in 23 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.