Washington has won with ease in the first two games of the series, with Gio Gonzalez throwing a complete game shutout in Washington's 10-0 win on Thursday.
Zimmermann is looking for his 10th win of the season. Zimmermann has pitched much better than his 9-8 record indicates, as he's the owner of a 2.63 ERA and 1.13 WHIP. Further, Zimmermann has held opponents to a .248 average against, and has walked just 32 while striking out 119 in 161 innings on the season.
Washington will face off against Kyle Lohse, who is 14-2 for St. Louis. Lohse also owns a stellar 2.64 ERA, 1.08 WHIP and has held opponents to just a .238 average.
First pitch is scheduled for 4:05 p.m. at Nationals Park. Televised coverage can be found on FOX.
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