Andrew Susac is on the disabled list at Triple-A Colorado Springs due to an oblique injury.
Junior Guerra (elbow) will be activated from the disabled list to start Friday against the Pirates.
Chase Anderson surrendered two earned runs over 5 1/3 innings Sunday in a loss to the Pirates.
Michael Blazek (forearm) has resumed a throwing program.
Junior Guerra (elbow) is on track to rejoin the Brewers' rotation next weekend in Pittsburgh.
Ryan Braun is not in the Brewers' lineup Sunday.
Hernan Perez homered twice and drove home four runs on Saturday, but it wasn't enough to lead the Brewers to victory over the Pirates.
Jimmy Nelson was hit hard in Saturday's no-decision against the Pirates, allowing six runs on seven hits in just 3 2/3 innings of work.
Orlando Arcia belted the first home run of his big league career on Friday as the Brewers fell to the Pirates.
Matt Garza pitched well in a losing effort against the Pirates on Friday allowing five runs (zero earned) on five hits in hi 5 1/3 innings of work.
Kirk Nieuwenhuis hit a two-run home run, his 12th of the season, in Thursday's loss to the Pirates.
Wily Peralta allowed two runs over five innings in a no-decision Thursday against the Pirates.
Ryan Braun slugged a pair of home runs Wednesday in the Brewers' 7-1 rout of the Rockies.
Zach Davies limited the Rockies to one run over six innings Sunday for his 10th win of 2016.
Brewers sent OF Ramon Flores outright to Triple-A Colorado Springs.