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06/17/12 2:39 PM ET

Exercising caution, Showalter rests Roberts

ATLANTA -- Brian Roberts was out of the starting lineup on Sunday, getting his first break since returning from a concussion on June 12. Manager Buck Showalter said that Roberts was available off the bench if needed.

Roberts was replaced on Sunday at second base and in the leadoff spot by Robert Andino, who served as the second baseman while Roberts was out, and is hitting .239 this season.

Roberts is 7-for-22 since returning from his concussion, which had kept him out of action since last May. Showalter said that Roberts wasn't happy being out of the lineup, but he wants to use a cautious approach with the 34-year-old.

"It's not a whole lot of fun filling out a lineup without him in it," Showalter said, "but it's prudent at this point."

Roberts went 2-for-4 with three RBIs in the Orioles' 5-0 victory over the Braves on Saturday. Because the O's are playing in Atlanta under National League rules, two of his at-bats came with runners in scoring position after a sacrifice bunt by pitcher Jason Hammel.

"I told Hammel that's the fun part of National League baseball as a leadoff guy. When you have the bottom of the order swinging the bat good and the pitcher has a clue how to bunt, you get some RBI chances," Roberts said. "That's fun, because as a leadoff guy, that's not always your role."

Hammel's knee feels fine after Saturday's win

ATLANTA -- Manager Buck Showalter said that right-hander Jason Hammel showed no ill effects on Sunday, one day after throwing a one-hit shutout in the Orioles' 5-0 victory over the Braves. Hammel has dealt with soreness in his right knee this season, and that was part of the reason his start against the Braves had been pushed back a day.

Hammel hit a ground ball to short in the top of the ninth inning and was tagged out after a protracted jog down the line. Showalter said that not running out the ground ball was the best thing Hammel could have done in that situation.

"We had him at 6.89 [seconds]," Showalter said. "That's one of the few times I'll condone a 6.89."

Hammel, who spent three years with the Rockies, was happy to lay down two sacrifice bunts, but he doesn't like hitting much now that he's in the American League.

"That's why I didn't run out that last one," Hammel said. "My knee was hurting me a little bit. I wanted [first baseman Eric] Hinske to meet me halfway. He was laughing at me. I said, 'I don't want to run that far, come get me.'"

Thanks to an off-day on Thursday, Hammel will have an extra day of rest before his next start.

Worth noting

• Manager Buck Showalter said that right-hander Matt Lindstrom will make a rehab appearance in the Gulf Coast League on Monday. It will be the first game action for Lindstrom, who is on the 15-day disabled list with a partially torn ligament in his middle finger.

• With his performance on Saturday, right-hander Jason Hammel became the first visiting pitcher to beat the Braves with a one-hitter since the franchise moved to Atlanta in 1966.

Teddy Cahill is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.