Reyes was designated for assignment by the Red Sox on Tuesday, Chris Cotillo of The Springfield Republican reports.
Reyes spent the 2019 campaign at Double-A Portland and posted a 4.16 ERA, 1.18 WHIP and 116:37 K:BB over 151.1 innings (26 starts). The 23-year-old could still make his way to Triple-A in 2020 if he can show some early season improvements, assuming he clears waivers and remains with the Red Sox.