Both sides have struggled recently, especially Mainz who suffered a 4-game losing streak in the league.
What’s worse, Mainz also lost 4 successive league games at home.
On the other hand, Schalke 04 have overwhelming advantage in past record against Mainz.
Besides, Schalke 04’s away performance in AH this season is good.
Thus, the visitors should earn our favor in this game.