Walston (elbow) struck out two and allowed one hit in a scoreless inning during a rehab appearance Wednesday with Triple-A Reno.
Thompson (back) began a throwing program Monday, Alex Weiner of ArizonaSports.com reports.
The Rockies outrighted Julien to Triple-A Albuquerque on Thursday.
Lawlar (hamstring) could rejoin the Diamondbacks during a road trip the begins Friday in Atlanta, Alex Weiner of Arizona Sports reports.
Martinez (elbow) struck out two and did not allow a hit or walk in an inning for Triple-A Reno on Tuesday.
Perdomo went 2-for-6 with a run scored in Wednesday's 6-4 loss to the Rockies.
Carroll went 2-for-4 with a solo home run, a triple and a second run scored in Wednesday's 6-4 loss to Colorado.
The Rockies reinstated Criswell (shoulder) from the 15-day injured list Wednesday and optioned him to Triple-A Albuquerque.
Romano earned the save in Wednesday's 6-4 win over the Diamondbacks, issuing one walk in a scoreless ninth inning.
Kelly (8-10) took the loss Wednesday against the Rockies, allowing six runs on six hits and three walks over five innings. He struck out two.
| PITCHING | INN | W | K | HA | ER | BBI | |
| M. Kelly | Merrill Kelly | 6.1 | 0.52 | 5.7 | 5.0 | 2.4 | 1.3 |
| Relievers | Relievers | 2.9 | 0.15 | 2.9 | 3.2 | 1.7 | 1.2 |
| HITTING | H | R | RBI | TB | BB | SB | |
| K. Marte | Ketel Marte | 1.3 | 0.78 | 0.72 | 2.24 | 0.51 | 0.07 |
| G. Perdomo | Geraldo Perdomo | 0.95 | 0.53 | 0.58 | 1.29 | 0.38 | 0.12 |
| L. Gurriel | Lourdes Gurriel | 1.24 | 0.57 | 0.72 | 2.04 | 0.28 | 0.08 |
| E. Suarez | Eugenio Suarez | 0.9 | 0.76 | 0.74 | 1.92 | 0.45 | 0.03 |
| R. Grichuk | Randal Grichuk | 0.85 | 0.52 | 0.45 | 1.53 | 0.26 | 0.01 |
| I. Vargas | Ildemaro Vargas | 0.45 | 0.23 | 0.27 | 0.7 | 0.11 | 0.03 |
| P. Smith | Pavin Smith | 0.9 | 0.57 | 0.6 | 1.49 | 0.36 | 0.07 |
| T. Tawa | Tim Tawa | 0.55 | 0.34 | 0.31 | 0.9 | 0.18 | 0.06 |
| A. Garcia | Aramis Garcia | 0.34 | 0.19 | 0.22 | 0.56 | 0.12 | 0.01 |
KEY PLAYER INJURIESNo new major injuries to report NOT PROJECTED TO START:Batting order and lineup confirmed and provided by Rotowire. | |||||||
| PITCHING |
| Merrill Kelly |
| Relievers |
| HITTING |
| Ketel Marte |
| Geraldo Perdomo |
| Lourdes Gurriel |
| Eugenio Suarez |
| Randal Grichuk |
| Ildemaro Vargas |
| Pavin Smith |
| Tim Tawa |
| Aramis Garcia |
| INN | W | K | HA | ER | BBI |
| 6.1 | 0.52 | 5.7 | 5.0 | 2.4 | 1.3 |
| 2.9 | 0.15 | 2.9 | 3.2 | 1.7 | 1.2 |
| H | R | RBI | TB | BB | SB |
| 1.3 | 0.78 | 0.72 | 2.24 | 0.51 | 0.07 |
| 0.95 | 0.53 | 0.58 | 1.29 | 0.38 | 0.12 |
| 1.24 | 0.57 | 0.72 | 2.04 | 0.28 | 0.08 |
| 0.9 | 0.76 | 0.74 | 1.92 | 0.45 | 0.03 |
| 0.85 | 0.52 | 0.45 | 1.53 | 0.26 | 0.01 |
| 0.45 | 0.23 | 0.27 | 0.7 | 0.11 | 0.03 |
| 0.9 | 0.57 | 0.6 | 1.49 | 0.36 | 0.07 |
| 0.55 | 0.34 | 0.31 | 0.9 | 0.18 | 0.06 |
| 0.34 | 0.19 | 0.22 | 0.56 | 0.12 | 0.01 |
