Niko Kovac was satisfied as Bayern Munich took another step towards the Bundesliga title by beating Hannover, whose coach Thomas Doll was angered by Jonathas' red card.
League leaders Bayern were 2-0 up at half-time at the Allianz Arena on Saturday thanks to goals from Robert Lewandowski and Leon Goretzka, with Doll introducing Jonathas at the break.
The striker converted a penalty harshly awarded for a handball by Bayern defender Jerome Boateng but two bookings in quick succession then saw him dismissed.
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Franck Ribery came off the bench to score a late third and secure victory for Bayern, moving them temporarily five points clear of closest rivals Dortmund.