Pirates Prospects has learned that the Pittsburgh Pirates signed 16-year-old catching prospect Yeison Ceballo on Sunday. Ceballo participated in the Dominican Prospect League, which is a league specifically for the top prospects in the county. He has been eligible to sign since July 2nd and was one of the top remaining catcher unsigned in this class. He's a right-handed hitter, listed at 5'11", 170 pounds, though he may have grown from those numbers, which were from late 2016.
You can view a video here on Ceballo from December of 2016. His birthday is February 20th, not Feb 1st, which is listed in the video.