meet your match
US /miːt jʊər mætʃ/
UK /miːt jʊər mætʃ/

1.
encontrar seu par, encontrar seu adversário
to encounter someone who is equal or superior to you in skill, strength, or ability, often leading to a challenge or defeat
:
•
The undefeated boxer finally met his match in the championship fight.
O boxeador invicto finalmente encontrou seu par na luta do campeonato.
•
She thought she was the best debater, but she definitely met her match in the new student.
Ela pensou que era a melhor debatedora, mas definitivamente encontrou seu par no novo aluno.