The Brewers look to win the rubber match of their final series before the All-Star break. He is 0-1 with a 2.61 ERA in two starts against St. Louis this season.
BLUE JAYS 6, TIGERS 1 All-Star Josh Donaldson hit a three-run home run for host Toronto, and R.A. Dickey (7-9) won a second consecutive start for the first time in a month.
The Brewers wasted Chris Carter's leadoff triple in the seventh, his first since 2014, and didn't score after putting runners at first and third with no outs in the third. Despite Rosenthal's suddenly shaky status removing him from the closer's role he's held for years, St. Louis is already down quality setup man Kevin Siegrist.
Called up on May 1 to replace Taylor Jungmann, Guerra has gone 6-1 in 12 starts and after not allowing a run in 15 1/3 innings over his last two starts, his 2.93 ERA would put him 14th in the league if he had enough starts to qualify among league leaders.
Junior Guerra ends the first half of the season with his second start versus the Cardinals. Will Smith allowed a hit in an inning of work.
Villar's hit, off Seung Hwan Oh, got past a diving Greg Garcia, the Cardinals third baseman.
"That's pretty impressive", manager Mike Matheny said, "because we haven't played well". Garcia got to his feet and fired a throw to first that Gyorko dove to catch while keeping his foot on the base, ending the inning.
Kirk Nieuwenhuis hit an RBI single in the third for Milwaukee's only run. The Brewers stole three bases in the inning, including two by Jonathan Villar, but left the bases loaded.
Grichuk, hitting safely for his sixth straight game since returning from his brief exile in Memphis, also knocked in a run in the ninth.
Stephen Piscotty had two hits and scored two runs for St. Louis. He struck out eight and walked two. Anderson hasn't gotten through six innings in any of his last six four starts and hasn't made it through four in his last two, including his last time out when he walked five in 4 1/3 innings against the Cardinals on July 3.
Jonathan Lucroy had two hits, including an RBI single in the first for the Brewers.
Oliver Perez and Blake Treinen combined to escape an eighth-inning jam, and Washington extended its NL East lead to four games over the Mets after dropping the opener of the four-game series Thursday night.
Leake entered with a rate of 5.7 strikeouts-per-nine-inning, ranking 91st out of 99 qualifying pitchers in the majors. The next game is on Friday in Cincinnati, with the starting pitchers to be determined.
Milwaukee AB R H BI BB SO Avg.
BRAVES 2, WHITE SOX 0 Mike Foltynewicz (3-3) struck out a career-high 10 in seven innings, leading visiting Atlanta past Chicago.
MILWAUKEE (AP) - For a team that thinks it can and will play a whole lot better, the St. Louis Cardinals are in decent position. RBIs - Diaz (45), Holliday (52), Molina (28), Villar (31), Lucroy (41), Carter 2 (51).