He is 1 - 0 with a 1.72 ERA in three career appearances against the Pirates .
Guerra ( 7 - 3 , 2.93 ) was arguably the Brewers ' most consistent starter before getting hurt .
Guerra is 1 - 0 with a 1.72 ERA in three career appearances against the Pirates .
Guerra ( 7 - 3 , 2.93 ) was arguably the Brewers ' most consistent starter before getting hurt .