The Germany international believes the Gelsenkirchen side will prove to be a tough opponent in Saturday's Bundesliga match
The Gelsenkirchen side have won their last four matches following a slow start to the season, including a 3-0 win against Steaua Bucharest in the Champions League on Wednesday, and Neuer believes they will provide stern opposition.
"We can't expect it to be a walkover," he told the official Bayern website. "I think it will be a challenge to beat Schalke, especially considering they’re on a roll.
"We know Schalke are performing very well at the moment, so we have to do everything we can to win this game.
"If we think it will be a simple kick-about, we’ll be shown how wrong we are."