The Blue Jays have designated lefty Jayson Aquino for assignment, Ben Nicholson-Smith of Sportsnet.ca reports on Twitter. His 40-man spot will go to Chris Colabello, with Jonathan Diaz being optioned to open a place on the active roster.
Aquino, 22, was acquired from the Rockies this winter in exchange for fellow southpaw Tyler Ybarra. Previously rated as one of Colorado’s ten best prospects, the youngster had something of a rough 2014.
Sent to repeat the High-A level with Toronto, Aquino was off to a solid start. Over 25 2/3 innings, he owns a 2.81 ERA with 5.6 K/9 against 2.1 BB/9.