Bayern Munich accused of using inside knowledge by Ingolstadt coach Ralph Hasenhuttl

Ingolstadt coach Ralph Hasenhuttl claims Bayern Munich had inside knowledge of his side's set-piece routines before their Bundesliga match last weekend.

Bayern won the Saturday's clash at the Allianz Arena 2-0 and their coach Pep Guardiola later lavished praise on the top-flight newcomers, describing them as the best team his side had faced all season.

But Hasenhuttl believes Bayern had found out what they had been working on in training.

"We did a lot of things in training, particularly in terms of free-kicks, but our opponents knew all about them," he told Bild.

"Bayern's lads knew it all, even though we had trained behind closed doors."

That final session prior to the Bavarian derby was closed to spectators, but the perimeter fences at their training ground are less than six feet high.

We did a lot of things in training, particularly in terms of free-kicks, but our opponents knew all about them. Bayern's lads knew it all, even though we had trained behind closed doors.

"We don't have the manpower to protect ourselves on the field any better," Hasenhuttl added.

"We don't have much other choice than to go and train in the stadium in future.

"We knew even before the game that Bayern were aware of our plans."

Bayern have not commented on Hasenhuttl's claims but Guardiola paid tribute to Inglostadt after the game, saying: "A huge compliment to my team but also to Ralph and Ingolstadt for this courageous game.

"We played against the best team we've faced this season."