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
Marios	-	Greek
ÁSgeir	-	Icelandic
Franziska	frahn-TSIS-kah	German
Ushas	-	Hinduism
Julijana	-	Slovene, Croatian, Serbian, Macedonian
Zenia	['zi:niə]