According to Jim Callis of Baseball America, first round supplemental pick Keon Barnum has officially signed with the Chicago White Sox. The young prospect reportedly signed for $950,000, which is more than $100,000 under his slot value of $1,052,500, freeing up some cash for the other picks.
The left-handed Barnum went to the White Sox at the No. 48 overall selection -- a reach according to prospect guru Keith Law -- and the organization hopes he can develop into a solid slugger at either the first base or left field position.
Barnum's contract with the Sox will cause him to forego his scholarship to play baseball at the University of Miami. He hit five home runs with an impressive .417 batting average in his final season in high school.