Fellow first-rounder and catcher Nick Ciuffo, the No. 21 overall pick, signed on June 21. Ciuffo had previously committed to play college baseball at South Carolina.
Sixth-round selection Stephen Woods, a right-handed pitcher, did not sign. He will instead enroll at the University of Albany.
Sam Strong is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.