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Austin Metcalf's Dad Attacks Karmelo Anthony's 'Coward' Parents in Emotional Speech
By TMZ Staff
Austin Metcalf's father, Jeff Metcalf, went nuclear on Karmelo Anthony's parents in a passionate rant ... and it ended with a huge "f*** you" and a middle finger!!! Jeff appeared on Sarah Fields' "JinxedSip" podcast ... and he didn't hold back his…