The Orioles have acquired left-hander Jayson Aquino from the St. Louis Cardinals in exchange for cash, the club announced Thursday morning.
For the 23-year-old Aquino, the Orioles will be his sixth organization since the 2014 season.
He was ranked the ninth-best prospect in the Colorado Rockies' organization following the 2012 season by Baseball America, a tag given to him after dominating in the Dominican Summer League and rookie-level ball.
But his stock dropped as he struggled to establish himself at the Single-A level, going a combined 5-20 over the next two seasons. Despite an 0-10 record and a 4.34 ERA in 2013, the Rockies placed Aquino on their 40-man roster after that season to protect him from being selected in the Rule 5 draft.
Last season, he seemed to come around. He spent the year in High-A in the Pittsburgh Pirates, Toronto Blue Jays and Cleveland Indians systems before the St. Louis Cardinals claimed him off waivers this past offseason.
Aquino was 5-11 with a 3.28 ERA in 24 starts (137 1/3 innings) with those three organizations. He has been a starting pitcher for his entire six-year professional career, going 32-37 with a 2.94 ERA.
He will report to Double-A Bowie. He has pitched just two games (12 innings) at Double-A, both coming in 2014 with the Rockies late in the season.
The Baysox already have six starters in their rotation, so one will likely be moved into the rotation at Triple-A Norfolk, where their rotation has been depleted by right-handers Mike Wright and Tyler Wilson making the major league roster.
After passing relievers Chaz Roe and Zach Phillips through waivers late in spring training, the Orioles have plenty of room on their 40-man roster to carry a pitcher like Aquino. Even after his addition, the organizational roster is only at 38 players.