Sullivan (shoulder) began a rehab assignment with Triple-A Albuquerque on Thursday, striking out four while yielding one run in 1.2 innings.
Feltner (5-10) allowed four runs on six hits and one walk while striking out two batters over five innings in a loss to the Yankees on Thursday.
The Brewers recalled Stallings from Triple-A Nashville on Thursday, Todd Rosiak of the Milwaukee Journal Sentinel reports.
Moniak is not in the lineup for Thursday's contest versus the Yankees.
The Brewers optioned Sproat to Triple-A Nashville on Thursday, Adam McCalvy of MLB.com reports.
Contreras went 2-for-3 with a two-run home run, an additional RBI, one walk and two total runs scored in Wednesday's 8-6 win over the Cubs.
Chourio went 3-for-5 with a solo home run, a second RBI, a stolen base and a run scored in Wednesday's 8-6 win over the Cubs.
Yelich went 1-for-4 with a three-run home run in Wednesday's 8-6 win over the Cubs.
Norby went 2-for-3 with a double and a solo home run Wednesday against the Rockies.
Henderson (10-3) allowed one unearned run on two hits and a walk while striking out six over five-plus innings to earn the win over the Cubs on Wednesday.
