The Cubs agreed to sign supplemental first round selection Paul Blackburn, Jim Callis of Baseball America tweets. The high school right-hander, represented by Adam Karon of Sosnick Cobbe Sports, will obtain a $912K bonus.
MLB recommends a $912K bonus for the 56th overall selection, which the Cubs obtained as compensation for losing Carlos Pena to free agency. Blackburn has a clean delivery and the potential for three plus pitches, Callis reports.