Merrill went 1-for-4 with a solo home run, an additional RBI and a stolen base in a 3-2 win against Houston on Saturday.
Miller earned a save against Houston on Saturday, allowing one run on one hit while striking out one batter over one inning.
King (7-8) earned the win over the Astros on Saturday, allowing one run on three hits and one walk while striking out six batters over six innings.
Vasquez will start Sunday's matchup against the Astros on Sunday, Jeff Sanders of The San Diego Union-Tribune reports.
Acuna went 1-for-4 with a solo home run in Saturday's 5-4 loss to the Yankees.
Sale (12-7) took the loss Saturday, giving up three runs on five hits and two walks over six innings as Atlanta fell 5-4 to the Yankees. He struck out eight.
Tatis went 2-for-5 with a solo home run Friday in a loss to the Astros.
Ray (10-7) allowed four runs on seven hits and five walks while striking out two over five innings in Friday's 6-3 loss to the Astros. He also tossed two wild pitches.
Musgrove (elbow) struck out three and allowed one earned run on two hits and two walks across 2.2 innings in a rehab start Tuesday at Single-A Lake Elsinore.
The Padres announced Friday that Andujar no longer requires a splint for his fractured right wrist and has been cleared for light activity, MLB.com reports.
