Odion Ighalo continued his fine pre-season form as Watford ended their tour of Germany with a 2-0 victory over Paderborn.
Schalke have appointed former Paderborn boss Andre Breitenreiter as their new head coach.
Stuttgart came from behind to beat Paderborn 2-1 and secure their place in the Bundesliga next season.
Liverpool give U21s more game time than Premier League rivals but top flight lags behind Europe.
A last-gasp own-goal broke Paderborn hearts as they slumped to a 1-0 defeat at Schalke.
Wolfsburg regained second spot from Borussia Monchengladbach and left Paderborn inside the bottom two with a 3-1 win.