Borussia Dortmund secured their place in the Champions League for next season as Raphael Guerreiro, Marco Reus and Julian Brandt scored in a 3-1 win at Mainz on Sunday. Guerreiro and captain Reus hit first-half goals before Germany winger Brandt made sure of the three points with a late effort. With one game left, Dortmund, who routed Leipzig 4-1 to win the German Cup in midweek, cannot finish outside of the Bundesliga's top four. Mainz striker Robin Quaison claimed his 30th Bundesliga goal by netting a 90th-minute penalty. 

Qualifying for Europe caps a remarkable turnaround by Dortmund in the last six weeks. They were fifth and seven points from the Champions League places after losing 2-1 to Eintracht Frankfurt in early April. Dortmund have since won all six league games to guarantee a place next season in the group stages of the Champions League. "Not many people believed in us," Dortmund captain Reus told Sky when asked about bridging the seven-point gap.