Routine test revealed professional athlete had silent killer disease

At 27, Trey Mancini was at the peak of his career.

In March 2020, the six-foot-four baseball star had just started spring training for his fifth season with the Baltimore Orioles when he underwent a round of routine bloodwork.

When the results came back showing 'extremely low' hemoglobin - a protein that helps red blood cells carry oxygen throughout the body - team doctors were concerned.

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