(SportsNetwork.com) - Scott Feldman tries to follow up his first win of the season on Saturday when the Houston Astros resume a three-game series with the Oakland Athletics at the Coliseum.

Feldman had lost his first two starts, but defeated the Los Angeles Angels on Sunday, limiting them to a pair of runs and six hit in six innings lower his ERA to 5.09.

"I think just getting four runs of support was huge," Feldman said. "I felt pretty bad about giving up that home run when we scored the two runs the inning before. Luckily, I limited the damage and kept them right there, and the guys came back and put two more up."

Feldman is 5-9 lifetime versus Oakland with a 5.85 ERA in 27 games, 18 of which have been starts.

Getting the call for Oakland on Saturday will be rookie right-hander Kendall Graveman, who is 1-1 with a 6.94 ERA. Graveman did not get a decision on Monday in Anaheim, but did not pitch well, as he allowed three runs (2 earned) on four hits with three walks in just three innings of his team's 6-3 win.

"I've got to go deeper in ballgames. There's no excuses," Graveman said. "I'm getting too deep into counts, and I'm not the kind of guy who can do that."

Graveman had pitched 5 1/3 scoreless innings in his previous start after getting rocked for seven earned runs in his debut.

On Friday, Robbie Grossman's two-run single and George Springer's RBI single in the 11th inning carried Houston Astros to a 5-4 victory.

In the 11th, Chris Carter and Colby Rasmus each worked walks off Eric O'Flahery (0-2) to start the frame, moved up a base on Hank Conger's sacrifice bunt and scored on Grossman's grounder through the hole in left for a 4-2 game.

Grossman moved to second on the throw home and Jose Altuve was intentionally walked. Two batters later, Springer chopped a liner into shallow left for an RBI single.

Marcus Semien's two-run blast to left off Pat Neshek made it a 5-4 game. Ike Davis followed with a pinch-hit single and moved up to second on a wild pitch. Neshak retired Billy Butler and Ben Zobrist. After Tony Sipp walked Sam Fuld, Chad Qualls got Brett Lawrie to fly out to deep center for his second save of the season.

"There were some big hitting at the right time on both sides, but we walked away with the win," Houston manager A.J. Hinch said. "I think our guys are tired a little bit, but it's a little boost of adrenaline."

Oakland won two of three meetings with Houston from April 13-15.