Solomon was designated for assignment by the Reds on Tuesday.
Solomon got hit around quite a bit in the majors last season, recording a 10.80 ERA and 1.56 WHIP over 8.1 innings. His numbers didn't get much better with Triple-A Louisville (8.93 ERA, 1.92 WHIP), so it's not much of a surprise to see him removed from the Reds' 40-man roster.