MLB Pipeline has been posting new mock drafts all spring/summer leading up to today’s draft. Their mocks have switched each week between Jonathan Mayo and Jim Callis making the picks. In their final mock draft today, both Mayo and Callis submitted first round picks. The Pittsburgh Pirates pick fourth overall shortly after the draft begins at 7 PM tonight. Then later tonight they will make the 36th and 44th overall picks. We will have coverage of all 21 picks they make over the next three days here, along with thoughts on the draft and then we will be tracking those picks as they sign.