Khris Davis slugged his 34th home run of the year Sunday in the Athletics' 7-4 victory at St. Louis.
Billy Butler (concussion) is expected to be activated on Monday.
Sonny Gray (forearm) is slated to resume a throwing program this week.
Zach Neal allowed two runs (one earned) in six innings while fanning three and took a no-decision as the Athletics beat the Cardinals 3-2 on Saturday.
Ryan Madson turned in a clean ninth inning versus the Cardinals to earn his 26th save of the season on Saturday.
Khris Davis went 1-for-3 with an RBI and a run scored in a win over the Cardinals on Saturday.
Josh Phegley was admitted to a hospital Friday with synovitis in his right knee.
Sean Doolittle (shoulder) was not able to make his scheduled appearance Friday for Triple-A Nashville.
Danny Valencia is not in the Athletics starting lineup for Saturday's game against the Cardinals.
Ross Detwiler gave up three runs in 5 1/3 innings Friday in a loss to the Cardinals.
Yonder Alonso went 2-for-4 and homered for Oakland's only run of the game Friday against the Cardinals.
Athletics activated SS Marcus Semien from the paternity leave list.
Athletics acquired INF Max Schrock from the Nationals for LHP Marc Rzepczynski.
Kendall Graveman fired 6 2/3 innings of one-run ball Wednesday in the Athletics' 5-1 win over the Indians.
Billy Butler said Wednesday that he's making good progress in his recovery from a concussion.