Ritchie (1-4) earned the loss after allowing one run on four hits and three walks against the Reds on Tuesday. He struck out eight.
Acuna was removed from Tuesday's game against the Reds after fouling a ball off his left leg, Chad Bishop of The Atlanta Journal-Constitution reports.
Alvarez is starting at DH for Tuesday's matchup against Texas, per Anthony DiComo of MLB.com.
The Mets reinstated Williams (shoulder) from the 15-day injured list Tuesday.
Thomas (intercostal) took some swings off a tee Tuesday, Mark Bowman of MLB.com reports.
The Mets placed Scott on the 15-day injured list Tuesday with left knee inflammation.
Ritchie will start Tuesday's game against the Reds in Atlanta.
Tong (2-2) took the loss Sunday against the Phillies, allowing four runs on five hits and four walks over 4.2 innings. He struck out five.
Perez didn't factor into the decision Sunday against Houston, striking out two while allowing one run on six hits and two walks in 4.1 innings.
Dodd struck out the side to notch the save Sunday against Houston.
