Chris Davis is out of the lineup on Saturday because of his strained left oblique, which he says has gotten much better but remains sore.
He had an MRI taken on Saturday and is awaiting the results.
"[It feels] better than it did yesterday, still a little sore. I think a lot of it has to do with the poking and prodding," Davis said. "Kind of testing to see how it feels. I feel better today."
Davis was removed by manager Buck Showalter before the fifth inning of Friday night's loss to the Kansas City Royals. At the time Davis said he didn't think it would be a disabled list situation ane he remains optimistic.
"Oh yeah. I even think, as sore as I was yesterday, I don't think it was a DL thing," Davis said. "I think it was kind of like Buck said, try to get ahead of it right now so it doesn't turn into a DL thing. The biggest thing to remember is we have a lot of games to play. Missing one or two games now is better than missing 10 or 15 down the road."
Ryan Flaherty filled in for Davis on Friday at first, but on Saturday Gold Glove right fielder Nick Markakis is playing first base. He has played the position in three major league games, and started there twice in 2011. He hasn't started there since Sept. 4, 2011.
"It's another baseball position," Markakis said. "You've got to catch the ball and throw the ball. It's a little different than in the outfield but we'll see how it goes and hope for the best."
He said he didn't need to be asked by Showalter.
"He knows that I am always available to play there if he needs me and we are in a situation where we need to expand our positions a little bit and I am all for it," Markakis said. "All you can do is go out there and do your best and hope for the best."
Asked if he enjoys playing first, Markakis joked, "Yeah, it's a lot shorter run than it is in the outfield."
The Orioles promoted Jemile Weeks from Triple-A Norfolk and immediately put him atop the order Saturday.
"Yeah, you come up here and a lot of guys might wonder when they're going to play this and that, but I kind of know how Buck operates and whatever he thinks is the best lineup to win, he's going to put it up there," Weeks said. "So, I was prepared if I had to play, lead off, whatever."
The lineup: Weeks DH, Cruz 9, Markakis 3, Adam Jones 8, Matt Wieters 2, J.J. Hardy 6, Flaherty 5, Jonathan Schoop 4, David Lough 7. Wei-Yin Chen 1.