12 Lefties invade the mound today
Keuchel-Astros
Pomeranz-Red Sox
Perez-Rangers
De LaRosa-Rockies
Gonzalez-Nats
Detwiler-A's
Quintana-White Sox
Snell-Rays
Happ-Blue Jays
Garcia-Cards
Ray-D'Backs
Kazmir-Dodgers
Keuchel
Houston will turn to left-hander Dallas Keuchel, who will try and build the Astros first winning streak in two weeks.
In nine starts since July 18, Keuchel has had just one clunker in which he allowed seven runs in five innings against Detroit on July 31. He rebounded with a complete game shutout his last time out against Texas, allowing just five men to reach base while striking out seven.
Keuchel was roughed up for five runs on seven hits and five walks in a loss to Minnesota on May 2 at Minute Maid Park.
Gonzalez
Washington starter Gio Gonzalez (7-9, 4.13) has been resurgent of late. He enters with a 3-1 record and a 2.03 ERA in his last five starts, including 6 1/3 innings with just two earned runs allowed in a no-decision at Cleveland on July 16.
Gonzalez, the former Oakland Athletic, has enjoyed facing the Indians. In eight career starts against them, he's 5-0 with 1.07 ERA, though only one of those meetings has come since 2013.
He'll have to contend with a red-hot Jose Ramirez. Hitting in the fourth spot, Ramirez drove in two runs with two hits Tuesday night, stole a base and scored a run.
"He's been doing it all year," Mills said after the game. "He was hitting cleanup tonight for a reason."
In his last 15 games, Ramirez is batting .407 (22-for-54) with five doubles, two home runs, five RBIs, 10 runs scored and eight stolen bases.
De LaRosa vs Perez
Jorge De La Rosa will start Wednesday for Colorado, which after winning 11 of 13 games has lost five of the past six. The Rockies just finished a 3-5 homestand, dropping their record to 28-29 at Coors Field. They are 27-29 on the road.
De La Rosa (7-7, 5.24 ERA) didn't figure in the decision Friday against the Miami Marlins. He allowed one run in six innings, but Estevez melted down in the ninth, and the Rockies lost 5-3.
He will oppose Texas left-hander Martin Perez (7-8, 4.33 ERA). Perez hasn't won a game since June 26, going 0-4 with a 6.33 ERA in his past seven starts. on Friday at Houston, Perez gave up five runs in seven innings during a 5-0 loss.
The Rangers (67-47) just concluded a trip that began with two losses before they won five of the next six games. Texas has won four consecutive games, with each one decided in the seventh inning or later.
Kazmir
Kazmir has lost his last two outings after posting an unbeaten run in 13 consecutive starts, winning seven straight. In his last start, Kazmir allowed four runs on five hits with five walks and two strikeouts in 5 1/3 innings during a 9-0 loss to the Boston Red Sox on Friday.
The last time Kazmir pitched against the Phillies was Sept. 21, 2014, as a member of the Oakland A's. Kazmir fanned nine and walked one, but he gave up six runs on 11 hits in 5 1/3 innings in a no-decision. He is 1-1 with 7.04 ERA in three career starts against Philadelphia.
Kazmir will try to slow Freddy Galvis, who registered his 24th multi-hit game of the season -- and second in three games -- by going 2-for-3 with a solo home run and two stolen bases Tuesday. Galvis homered for the 10th time this season, the first time in five seasons he has reached double digits.
Happ
The Toronto Blue Jays left-hander won 12 games in 2009 with the Philadelphia Phillies. That total is barely visible in the rear-view mirror as he goes for his 16th win Wednesday in the series finale, and rubber match, of a three-game set with the Tampa Bay Rays.
Happ (15-3, 3.09 ERA) will be facing left-hander Blake Snell (3-4, 2.95 ERA) at Rogers Centre.
Happ also will be trying for his 10th straight winning decision after losing against the Detroit Tigers on June 6. In 10 starts since the loss, he is 9-0 with a 2.49 ERA.
He also has allowed one or no walks in five of his past seven starts and has 41 walks against 116 strikeouts in 137 innings, which he credits pitching coach
12 career games, including 11 starts, against Tampa Bay, Happ is 2-3 with a 5.37 ERA. This season, he is 0-1 with a 7.98 ERA in three starts against Tampa Bay.
He will also be pitching on five days' rest for the sixth time this season. He has gone 2-3 with an 8.25 ERA in five previous start with an extra days' rest.
Garcia
DeSclafani will be opposed by St. Louis left-hander Jaime Garcia (8-8, 4.04), who notched a 1-0 win Friday night against Atlanta, whiffing 11 as he tossed a three-hit shutout over eight innings.
Garcia owns a sterling 10-4 career record against Cincinnati with a 3.75 earned run average in 20 career outings. At home, those numbers are even better, as Garcia is 7-1 with a 2.32 ERA.
The key for success in this one for Garcia might be keeping Reds leadoff man Billy Hamilton off base. The center fielder has stolen nine bases in the last three games, including three Tuesday night, and has 48 in 54 tries for the season.