give someone/something a run for their money
US /ɡɪv ˈsʌm.wʌn ˈsʌm.θɪŋ ə rʌn fɔr ðɛr ˈmʌn.i/
UK /ɡɪv ˈsʌm.wʌn ˈsʌm.θɪŋ ə rʌn fɔr ðɛr ˈmʌn.i/

1.
donner du fil à retordre, rivaliser sérieusement
to compete very well against someone or something, making them work hard to win
:
•
The underdog team really gave the champions a run for their money in the final match.
L'équipe outsider a vraiment donné du fil à retordre aux champions lors du match final.
•
Our new product is designed to give the market leader a run for their money.
Notre nouveau produit est conçu pour donner du fil à retordre au leader du marché.