Doug Fister was knocked around for five earned runs on nine hits over 4 2/3 innings in a loss on Sunday night against the Rangers.
Scott Van Slyke is day-to-day after leaving Sunday's game with a leg injury.
Carlos Ruiz (hamstring) will undergo an MRI on Monday.
Cameron Maybin (wrist) could begin a rehab assignment Friday.
Andrew McCutchen is day-to-day with right knee soreness.
Barry Zito allowed five runs on 11 hits over 5 2/3 innings in his start Sunday against the Rockies.
Juan Nicasio threw six scoreless innings Sunday in a win over the Giants.
Dexter Fowler went 4-for-5 with two runs in Sunday's win over the Giants.