Potential answers for "MLS referee: Applicant must be ___"

⭐⭐⭐⭐ CARDCARRYING
⭐⭐ REFERENCELETTER
⭐⭐ FLAG
⭐⭐ GRE
⭐⭐ BIASED
⭐⭐ FOOTINTHEDOOR
⭐⭐ CPA
⭐⭐ SCREEN
⭐⭐ RULE
⭐⭐ PENALTYFLAG

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