knock off perch

knock somebody off their perch

(British & Australian)

to make someone fail or lose their leading position Will Rovers win the European Cup and knock United off their perch?

Name	Pronounced	Usage
Caietanus	-	Late Roman
Arduino	ahr-DWEE-no	Italian
Marilyn	MER-ə-lin, MER-lin, MAR-ə-lin, MAR-lin	English
Walter	['wɔ:ltə]
Bora (3)	-	Korean
Edgardo	ed-GAHR-do	Spanish, Italian