The Diamondbacks have agreed to terms with first-round draft pick Corbin Carroll, according to MLB.com’s Jim Callis (via Twitter). The high school outfielder will receive the full slot value that comes with the 16th overall pick ($3,745,500).

This is the latest in a string of early draft signings for the Snakes, who had the game’s highest overall draft bonus pool due to a series of compensation picks. They’ve now reportedly inked four of their five highest selections, with only 26th overall choice Blake Walston still to go.

Carroll was the top target of the Arizona organization. He’ll forego a commitment to UCLA to begin his professional career. Entering the draft, MLB.com’s pundits graded him the 15th-best player available, right near his actual selection point. He landed 12th on the Baseball America board and ninth on the Fangraphs ranking.

There was one draft watcher who was quite a bit more bullish. ESPN.com’s Keith Law slotted Carroll way up in the number four spot on his own draft board. He posits that Carroll’s slate of exceptional tools — everything but his arm is a plus — warrant top-five consideration despite the youngster’s relatively diminutive frame. While Carroll stands at just 5’10, Law points to a variety of current big leaguers who deliver ample power from similarly modest heights.