The Orioles tweeted a new lineup with Nolan Reimold now serving as the designated hitter. No explanation has been provided.
Dickerson was supposed to be the DH and bat eighth against Rangers right-hander Josh Lindblom. Instead, Reimold is the DH and will bat ninth, with second baseman Brian Roberts moving up to eighth.
Dickerson flied out to center field to end last night's game after pinch-hitting for Reimold.
For the Orioles
Nate McLouth LF
Manny Machado 3B
Nick Markakis RF
Adam Jones CF
Chris Davis 1B
Matt Wieters C
J.J. Hardy SS
Brian Roberts 2B
Nolan Reimold DH
Wei-Yin Chen LHP
Update: Dickerson hasn't been traded. We're told that manager Buck Showalter will explain the reason following tonight's game. Have to assume it's health-related.
Showalter, asked whether left-hander Tsuyoshi Wada was a consideration to be called up today, said, "He's not quite there."
"We think he's making real good progress and we'd like to leave him alone getting the ball every fifth day for right now," Showalter added. "I brought up his name to R.J. (Ron Johnson) today, talking about a lot of different things and he really liked the way he's been throwing the ball lately."
Showalter said putting Wada in the bullpen is "not a consideration at this point."
"I'd probably have to have some conversations with those guys," he said. "You ask how they respond on their work day, how they feel the next day, how long does it take them to get ready to start a game, is it something he's ever done in the past? There's a lot of questions you'd have to answer. I've got a suspicion but it probably won't be favorable responses for someone who could pitch in the bullpen, but I could be wrong.
"He's getting close, I hope. Sounds like it."
Showalter is preparing his rotation for after the All-Star break, but he's not ready to announce it.
"Not publicly," he said. "We're looking at it. I think we'll probably wait and see how everything looks physically when we get done Sunday and take a little closer look at how it presents the matchups with the people we're playing after the break. There's two parts to that equation.
"Right now, we're concentrating on these games ahead of us. When the smoke clears on Sunday, we'll certainly let the players know before they leave."