Kansas City Royals starting pitcher Danny Duffy made his spring debut on Sunday, and he welcomed an impressive bit of good news afterward. Duffy was informed by reporters that he was already hitting 93 MPH on his fastball and touched 87 MPH on his slider. That's faster than ever for his slider, and Duffy averaged just 92.4 MPH on his fastball last year, so hitting that number before any spring training work was a shock. If Duffy can stay healthy and carry those numbers over to the regular ...
Danny Duffy Throwing Harder This Spring rotoballer.comMon 3/2/20 1:49 PM