Simplify the following text for a Grade 9 native English-speaking person.
Original: However , their on-field success was not matched financially and in 1920 the staunchly working-class Hertha merged with the well-heeled club Berliner Sport-Club to form Hertha Berliner Sport-Club .
Simplified: Because of money troubles in 1920 Hertha merged with the richer Berliner Sport-Club to form Hertha Berliner Sport Club .