starting five

(US, basketball) The five players who are initially playing for a team at the start of a game.

Japanese Meaning

試合開始時に先発として出場する5人組 / ゲーム開始時に初めにプレイする先発の5名

The coach decided to bench two veteran players from the starting five after their poor performances last night.

監督は、昨夜の不振を受けて先発の5人のうち2人のベテラン選手をベンチに下げることに決めた。

Sense（1）

(US, basketball) The five players who are initially playing for a team at the start of a game.

starting fives

（ plural ）