Serge Gnabry scored a hat-trick and Leroy Sane scored on his Bayern Munich debut as they opened the new Bundesliga season with a 8-0 demolition of Schalke.

Leroy Sane, making his debut after a 44.7 million pounds move from Manchester City, assisted two of Gnabry's goals.

Bayern have won 22 games in a row.

Robert Lewandowski, Leon Goretzka, Thomas Muller and 17-year-old Jamal Musiala scored their other goals.