Ynoa was optioned to Triple-A Gwinnett on Friday.
Ynoa had spent the start of camp on the big-league side as a member of the 40-man roster, though he was never considered a candidate for an Opening Day roster spot. With just six starts at the High-A level under his belt and an 8.03 ERA in those starts, he's still quite a ways from pushing for a big-league job.