A series of ugly incidents in June set the tone for this Orioles-Athletics rematch. The two teams' consistently stellar play has made this series one of the most competitive and exciting of the season. It concludes with a rubber match on Sunday.
Baltimore will turn to Kevin Gausman and Oakland will go with Sonny Gray in the finale of a three-game series at O.co Coliseum.
Gausman, who is 4-2 with a 3.29 ERA this season, began the impressive stretch to his season when the O's hosted the A's at Oriole Park on June 7. Gausman hurled seven one-run innings and has a 2.36 ERA in six games starting with that outing.
"If I keep pitching well, I'll probably stay here," Gausman said. "If I don't, I'll go down. When you get an opportunity you've got to take it."
Despite a 10-3 record and a sparkling 2.79 ERA this year, Gray has struggled against Baltimore in his young career. He's 0-2 with an 11.42 ERA in two starts against the O's.
In his past three starts, though, he's been at his best, going 3-0 with a 0.83 ERA. He capped that with a gem against the Mariners -- 7 2/3 innings and just one unearned run on July 13.
"I was trying to throw my best fastball, my best curveball, my best change up in the perfect spots," Gray said.
Athletics: Reddick showing promise during rehab
At the end of the weekend, Oakland will re-evaluate the rehabbing Josh Reddick. If his production is any indication, he's well on his way to a big league return.
Reddick went 3-for-5 with a game-tying home run in the ninth inning on Friday for Class A Advanced Stockton, and the outfielder followed that with an 0-for-4 game on Saturday. He is 7-for-17 with a pair of homers and seven RBIs in four games with Stockton.
"That's a good sign," A's manager Bob Melvin said. "He knows we want him feeling good. That was the case the last time and he took that pretty seriously, and I'm sure he's doing that again this time."
He could return on Tuesday when the Athletics open a three-game series at home against the Astros.
Orioles: Machado feeds off boos
Manny Machado has been showered with constant boos since Baltimore arrived in Oakland on Friday, but O's manager Buck Showalter believes the third baseman is handling himself well -- and perhaps even using the heckling to fuel him.
"I thought he kind of fed off it," Showalter said.
Machado struggled on Saturday in a follow up to his 2-for-4 game a night earlier. This time, though, the O's came out on top.
"There's a lot of people watching that go, 'Gosh, how does somebody do that in that environment?'" Showalter said. "It's hard. You realize how many people are hoping and expecting failure.
"I think I had more anxiety about it than he did."
• Baltimore hit its 44th go-ahead home run of the season on Saturday. Only the White Sox with 48 have more this season.
• The O's win on Saturday brought the season series between these two division leaders to 3-2 in favor of the A's.
David Wilson is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.