give (one) a run for (one's) money

To challenge one's ability, fortitude, or patience. Don't underestimate our opponents today—I think they'll give us a run for our money. Having an infant and a toddler sure is giving me a run for my money.

Common Names:

Name	Pronounced	Usage
Santino	sahn-TEE-no	Italian
Grosvenor	GROV-ə-nər, GROV-nər	English (Rare)
Erminhilt	-	Ancient Germanic
Toni	['təuni]
Remus	REE-məs (English)	Roman Mythology, Romanian
Ferruccio	fer-ROOT-cho	Italian