There was a time a few years ago where Grant Duff was showing some plus stuff, but it soon took a…
Location Key For Duff
Now a full-time relief pitcher, Grant Duff feels comfortable, but continues to work on his consistency and the location of his pitches in order to prove useful to the Tampa Yankees pitching staff. In 2007 as a starter with Charleston, Duff's fastball velocity sat around 89- , but has now increased to between 90-95 mph on average; however, his once-powerful slider is on the rocks as of late...
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