Schalke's German midfielder Daniel Caligiuri celebrates after scoring a goal during the German First division Bundesliga football match between Borussia Dortmund and FC Schalke 04 in Dortmund, western Germany, on November 25, 2017. Pic/AFP

Schalke came from 4-0 down to deny rivals Borussia Dortmund a much-needed victory as a dramatic Revierderby ended in a 4-4 draw on Saturday. Pierre-Emerick Aubameyang scored one and set up another as Dortmund raced into a four-goal lead inside 25 minutes, but his dismissal with 18 minutes left contributed to an epic collapse from Peter Bosz’s men, who have taken only two points from their last six league matches.