Herz (elbow) is expected to be activated from the 60-day injured list and start Monday's contest against the Tigers, Kyle Williams of TheBanner.com reports.
Simpson was optioned to Triple-A Rochester after Sunday's 5-3 loss to the Cardinals.
Irvin took a no-decision Sunday against the Cardinals, striking out eight while allowing two runs on three hits and no walks in 5.1 innings.
Lowder (6-12) took the loss Sunday against the Cubs, allowing five runs on six hits and three walks across three innings. He struck out three.
Cincinnati designated Friedl for assignment Sunday.
The Reds placed Burns on the 15-day injured list Sunday due to a right groin strain.
Cincinnati promoted Spiers from Triple-A Louisville on Sunday.
Dion earned his first career save after retiring the only batter he faced in Saturday's 8-5 extra-innings win over the Cardinals.
Cornelio (3-2) earned the win in extra innings against the Cardinals on Saturday after allowing two unearned runs on three hits and a walk while striking out two over 1.2 innings.
Tolman was charged with a blown save after allowing one run on three hits while striking out one over one-third of an inning in Saturday's 8-5 extra-innings win over the Cardinals.
| PITCHING | INN | W | K | HA | ER | BBI | |
| B. Williamson | Brandon Williamson | 5.2 | 0.22 | 4.6 | 5.1 | 2.3 | 1.5 |
| Relievers | Relievers | 3.8 | 0.34 | 3.8 | 3.6 | 1.5 | 1.5 |
| HITTING | H | R | RBI | TB | BB | SB | |
| K. Newman | Kevin Newman | 1.32 | 0.6 | 0.55 | 2.03 | 0.42 | 0.11 |
| M. McLain | Matt McLain | 1.28 | 0.64 | 0.56 | 2.02 | 0.37 | 0.11 |
| J. India | Jonathan India | 0.97 | 0.6 | 0.48 | 1.59 | 0.36 | 0.06 |
| E. De | Elly De La Cruz | 1.21 | 0.6 | 0.5 | 1.81 | 0.32 | 0.15 |
| S. Steer | Spencer Steer | 1.22 | 0.61 | 0.62 | 2.21 | 0.47 | 0.05 |
| T. Stephenson | Tyler Stephenson | 1.02 | 0.47 | 0.5 | 1.46 | 0.35 | 0.01 |
| N. Senzel | Nick Senzel | 1.09 | 0.54 | 0.51 | 1.72 | 0.41 | 0.09 |
| W. Benson | Will Benson | 0.99 | 0.52 | 0.47 | 1.64 | 0.39 | 0.1 |
| L. Maile | Luke Maile | 0.99 | 0.44 | 0.49 | 1.77 | 0.3 | 0.02 |
KEY PLAYER INJURIEST. Antone, N. Lodolo, H. Greene, Ben Lively, C. Overton, V. Gutierrez, R. Sanmartin, J. Dunn NOT PROJECTED TO START:Joey Votto, Curt Casali, T.J. Friedl, Jake Fraley Batting order and lineup confirmed and provided by Rotowire. | |||||||
| PITCHING |
| Brandon Williamson |
| Relievers |
| HITTING |
| Kevin Newman |
| Matt McLain |
| Jonathan India |
| Elly De La Cruz |
| Spencer Steer |
| Tyler Stephenson |
| Nick Senzel |
| Will Benson |
| Luke Maile |
| INN | W | K | HA | ER | BBI |
| 5.2 | 0.22 | 4.6 | 5.1 | 2.3 | 1.5 |
| 3.8 | 0.34 | 3.8 | 3.6 | 1.5 | 1.5 |
| H | R | RBI | TB | BB | SB |
| 1.32 | 0.6 | 0.55 | 2.03 | 0.42 | 0.11 |
| 1.28 | 0.64 | 0.56 | 2.02 | 0.37 | 0.11 |
| 0.97 | 0.6 | 0.48 | 1.59 | 0.36 | 0.06 |
| 1.21 | 0.6 | 0.5 | 1.81 | 0.32 | 0.15 |
| 1.22 | 0.61 | 0.62 | 2.21 | 0.47 | 0.05 |
| 1.02 | 0.47 | 0.5 | 1.46 | 0.35 | 0.01 |
| 1.09 | 0.54 | 0.51 | 1.72 | 0.41 | 0.09 |
| 0.99 | 0.52 | 0.47 | 1.64 | 0.39 | 0.1 |
| 0.99 | 0.44 | 0.49 | 1.77 | 0.3 | 0.02 |
