SAN FRANCISCO — Orioles manager Buck Showalter continued to express frustration Sunday about baseball's video-replay system a day after he wasn't allowed to challenge a pivotal call in the sixth inning of a 6-2 loss to the San Francisco Giants.

After center fielder Adam Jones' bunt attempt on the first pitch of the inning Saturday, the ball hit his hand, then his right leg, and bounced in front of the mound. Pitcher Madison Bumgarner fielded the ball and threw to first, where Jones was called out.

Showalter asked crew chief Jeff Kellogg for a review, which would have shown that the ball hit Jones in the batter's box, which would have made it a dead ball. But Showalter was told after the umpires consulted with replay officials in New York that because home plate umpire Brian O'Nora ruled that Jones had made an attempt for the pitch and it was a live ball, it could not be reviewed.

“Once they rule that he attempted at it, they can't review anything else to get the play right,” Showalter said. “To get the play right, you review that. It's just frustrating.”

It was the third time during the Orioles' road trip that a replay-related play has affected a game. In a loss to the Chicago White Sox on Aug. 7, a ball hit down the left-field line, initially ruled foul, was reversed to a fair ball on replay, leading to the go-ahead run.

The previous night at U.S. Cellular Field, the Orioles benefited from replay in a win in Chicago when a call deeming Dioner Navarro out at third was upheld after video review.

But Showalter was flummoxed by the fact that Saturday's play never got to review.

“Those guys are out there to umpire, and the people in New York are there to correct things,” Showalter said. “They went there, and we're trying to get the play right if it's something correctable, and they got told it wasn't reviewable once Brian had ruled that he had attempted. But it's still a foul ball if he attempted. There's a lot of things like that, and it seems to have happened a lot to us this year. Maybe I'm paranoid, or maybe I'm alert. There's a fine line between the two.”

Jones back in lineup: Jones was back in the starting lineup Sunday after he was hit in the right hand by a 91-mph fastball on his sixth-inning bunt attempt.

He responded by driving in the Orioles' first two runs and going 1-for-4 in their 8-7 comeback win over the Giants. Jones batted .386 (17-for-44) and hit safely in nine of the road trip's 10 games.

“He's hammering balls off his feet and he's back to hitting around .280,” Showalter said. “He's going to have another Adam Jones year: Play the heck out of center field and post up.”

A look to September: Several players are expected to return from the disabled list around Sept. 1, when rosters expand, but Showalter said he doesn't expect to add many players beyond them.

Showalter said he's talked about potential call-ups with his coaching staff but still has to discuss moves with executive vice president Dan Duquette.

“I don't want 40 guys up here,” Showalter said. “I want guys up here that can help us. We'll sit down and bang it around again.”

Around the horn:Showalter earned his 1,406th career victory, tying him with Jimmy Dykes for 27th place all time on the managerial wins list. … Jonathan Schoop's winning homer Sunday was his second career go-ahead homer in the ninth inning. His previous one came July 10, 2015, against the Washington Nationals' Tanner Roark.

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