Over his last eight starts, A's right-hander Bartolo Colon has been in the zone.
The 40-year-old is on a career-high eight-game winning streak, during which he's posted a 1.37 ERA. Colon last took a loss on May 9 against the Indians.
He'll look to keep that streak going on Wednesday as the Cubs and A's face off in Oakland.
Colon allowed just one run on six hits in eight innings of work on Friday against the Cardinals, improving to 11-2 on the season with a 2.79 ERA. The win made him just the second A's pitcher since 1991 to record 11 wins before the end of June.
While Colon relied on his fastball throughout the night, he added more curveballs and changeups than he had in past outings.
"I don't expect anything less now," teammate Josh Donaldson said. "He's just one of those guys who goes out there and gives us a chance to win. He's been dominant. It hasn't even been a question."
Colon will be up against Cubs right-hander Matt Garza, who's been in quite a groove himself as of late, winning his last two starts.
Against the Brewers on Thursday, Garza allowed just one run on eight hits in seven innings of work for his third win this season. He also struck out a season-high 10 batters.
Going at least seven innings in his last three starts, Garza has allowed just two runs in 22 innings. He's also struck out 23 and walked just five.
"My job is to get ready for every five days, and get out there and perform and do what I have to do and be at my best every five days," Garza said.
Cubs: Feldman goes to O's
Chicago dealt pitcher Scott Feldman and catcher Steve Clevenger to the Orioles for right-handed pitchers Jake Arrieta and Pedro Strop, plus two international signing bonus slots on Tuesday.
They also acquired the Astros' Nos. 2 and 3 international signing bonus slots for Minor League infielder Ronald Torreyes, and dealt Carlos Marmol to the Dodgers for reliever Matt Guerrier.
With the three moves, the Cubs added $963,000 in international slot money, and upped their total pool to $5,520,300.
"This is an international class that our scouts really like, and we felt it was very deep," Cubs general manager Jed Hoyer said. "The addition of dollars can help us be aggressive in this international market."
A's: Parker still not a go for Thursday
Oakland still isn't sure if right-hander Jarrod Parker will get the nod for Thursday's game against the Cubs.
Parker, who left Saturday's start early due to right hamstring tightness, experienced some soreness while throwing a bullpen session on Tuesday, but not enough to worry the A's, who are still hopeful he can stay on track.
"He was able to throw his bullpen without any complications," manager Bob Melvin said, "though there were times when he felt it just a little bit. Going after it in a bullpen with the intensity he did, we'll wait until tomorrow to see how he feels before we make a decision on whether or not he starts on Thursday."
• A's catcher John Jaso, who hasn't started a game since June 20 due to a left palm abrasion, has "a good chance" of getting the nod behind the plate for Wednesday's game against the Cubs, according to Melvin.
• In five career games against the A's, Garza is 1-3 with a 3.09 ERA.
Quinn Roberts is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.