From Kevin Goldstein's twitter:
One of the best relievers in the Midwest League, #Reds LHP Donnie Joseph, promoted to Hi-A Lynchburg.
Donnie Joseph's stats with Dayton:
23 IP, 13 H, 0 HR, 7 BB, 40 K, 0.78 ERA, 15.65 K/9.
That's total dominance. This promotion was long overdue.