Edwin Diaz enters the year as the Mariners' top pitching prospect, and at Triple-A Tacoma, he will be just a step away from making his major league debut. Though he had issues with stranding runners, Diaz's peripherals at Double-A Jackson -- including an 8.9 K/9 ratio -- were encouraging. He has neither enough upside nor opportunity to merit a pick in any redraft format, but Diaz could pay dividends in a dynasty format as soon as 2017.
Fast-rising Mariners right-hander Edwin Diaz has been promoted to Double-A Jackson after a fine start with Class A Advanced Bakersfield, per the Tacoma News Tribune. Diaz won both decisions with that team and posted a 1.70 ERA in seven starts. The third-round pick in 2012 allowed just 21 hits in 37 innings with 42 strikeouts and just nine walks.
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