Mariners relief prospect Thyago Vieira threw a bullpen workout Friday at the Peoria Sports Complex.
Mariners relief prospect Thyago Vieira threw a bullpen workout Friday at the Peoria Sports Complex. Seattle Mariners
Mariners relief prospect Thyago Vieira threw a bullpen workout Friday at the Peoria Sports Complex. Seattle Mariners
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Mariners’ prospect Thyago Vieira puts on a show

February 17, 2017 5:53 PM

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