play second fiddle
US /pleɪ ˈsɛkənd ˈfɪdl/
UK /pleɪ ˈsɛkənd ˈfɪdl/

1.
memainkan peranan kedua, berada di kedudukan bawahan
to be in a subordinate or less important position than someone else
:
•
She's tired of always having to play second fiddle to her older sister.
Dia bosan sentiasa terpaksa memainkan peranan kedua kepada kakaknya.
•
He's a talented musician, but he always seems to play second fiddle in the band.
Dia seorang pemuzik yang berbakat, tetapi dia sentiasa kelihatan memainkan peranan kedua dalam kumpulan itu.