Pick 137: Coby Mayo, 3B Stoneman Douglas (FL)
So we wrap up our mock draft with a player that is more upside than polished at this stage of his development in third baseman Coby Mayo. Mayo attends Stoneman Douglas High School, which has produced MLB star Anthony Rizzo, as well as top prospects like Jesus Luzardo and Colton Welker. Mayo has a shot to be the next player selected out of Stoneman Douglas, but a strong commitment to Florida and a fourth to sixth-round grade on him may push him to attend college.
Mayo has some loud tools, include his fantastic 65-grade arm and 60-grade power. Mayo can put on a show in batting practice and is an impressive physical specimen, standing at 6’5″, 220 lbs as an 18-year-old kid.
Mayo is a project and likely one that will require 3-4 years before the Mariners start to see their investment pay dividend. Mayo gets pull happy against live pitching in a desperate attempt to get to his power more often. This will lead to swing-and-miss issues and concerns that Mayo won’t hit enough to get to his power.
Mayo has fringe-average hands and feet, which leave some to wonder if he can even stick at third base. He has below-average speed, so he may be forced to move to first base or into a corner outfield spot if he can’t improve.
Mayo isn’t a sure-fire big leaguer, but with their last selection of the draft, Seattle could swing big for a kid with two, plus skills in his back pocket.
There we have it. A full, 5-round mock draft. Let us know where you think the Mariners should go this year and if you would be happy with the draft haul described above.