一名球员退役，只有当他的雇主将不再想与他签订合同并且在自由市场上没有一支球队需要他。

A player retires only if his employer will no longer want to sign a contract with him and he is not claimed from the free agents market by any team.

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四名后卫主将的缺席，使得穆里尼奥的球队在左后卫、中后卫的位置上一起出现了兵荒。

In the absence of key player back four, Mourinho led the team in the left back, center back position along with the emerging shortage of soldiers.

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四名后卫主将的缺席，使得穆里尼奥的球队在左后卫、中后卫的位置上一起出现了兵荒。

In the absence of key player back four, Mourinho led the team in the left back, center back position along with the emerging shortage of soldiers.

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