6:29pm: The deal will be above-slot, MLBTR's Tim Dierkes has learned.
5:53pm: The Rays have signed second-rounder Riley Unroe, tweets Roger Mooney of the Tampa Tribune. Terms of the deal are unknown but the suggested slot value for the No. 60 pick is just under $928K. Unroe is advised by Jason St. Clair of Lagardere.
The high school shortstop committed to USC but will instead begin his professional career with the Tampa Bay organization. Baseball America had Unroe ranked as the 53rd best prospect in the draft while Keith Law of ESPN and Jonathan Mayo of MLB.com had him ranked at No. 90 and 92, respectively.
In their profile of Unroe, BA estimated that it would take a seven-figure bonus to pry him away from the Trojans and a deal that meets the suggested value of his pick will put him right on the doorstep of that.