A "choice centre" refers to a place or situation where someone is given options or decisions to make. It is a center point where individuals have the freedom to choose what they think is best for them. Full definition
We need another centre back, and it looks like we need another first choice centre back as opposed to a backup. (justarsenal.com)
Two first choice centre backs out for a big game. (justarsenal.com)
People complaining about chambers and him not being a player you win the league with need to compare him with other teams 4th choice centre back. (justarsenal.com)