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7/31/2013 11:39 P.M. ET

Astros players understand deals are part of game

BALTIMORE -- Having to say goodbye to teammates at the Trade Deadline is nothing new to Astros first baseman Brett Wallace, who came to Houston in a Deadline deal three years earlier and has watched several trades take place.

On Wednesday, Wallace and his teammates exchanged goodbye hugs with pitcher Bud Norris, who was traded to the Orioles. Wallace and Norris have known each other for quite some time.

"It's crazy," Wallace said. "[Norris] was the first guy I really knew that well. I knew [catcher Jason] Castro from high school, but I played against Bud in high school. Seeing him move on is kind of surreal. It's weird that it's here and happening, but I think he's going to do great over there."

Castro is suddenly one of the veteran leaders on the club following the departure of Norris, outfielder Justin Maxwell and closer Jose Veras via trades and first baseman Carlos Pena, who was released.

"It's part of the game," Castro said. "It's one of those things that where we are in the rebuild, it's just a part of it. It's tough to see those guys go. They've been a big part of the organization for the last couple of years, and Bud was the longest-tenured Astro. We wish him the best of luck and he's going to be everything he was for us, and more, over there."

Astros manager Bo Porter says the shape of the ballclub has changed.

"This is a business, and like I said to Bud, it speaks to how he's been doing as a Major League player that he was having a number of teams call us with interest in him," he said. "He's going to a great situation over there in Baltimore, a great opportunity to play for a championship. I wish him well. I think we have enough young pitching in our organization and we feel comfortable moving forward."

Astros' rotation in flux after deal, injury

BALTIMORE -- The trade of Bud Norris and the pushing back of Erik Bedard a few days has cast some uncertainty over the Astros' rotation beyond Jordan Lyles getting the ball in Thursday's series finale.

Bedard was scratched from his scheduled start Wednesday against the Orioles after coming down with soreness in his left shoulder. Bedard threw in the bullpen prior to the game with assistant athletic trainer Rex Jones watching him.

"I just need a couple of days and I'll be fine," Bedard said.

When Bedard starts again is anyone's guess. Astros manager Bo Porter said the team will reshuffle its rotation following Wednesday's game. Lucas Harrell took Norris' spot in the rotation Tuesday, and lefty Brett Oberholtzer took Bedard's place on Wednesday.

"We had the day off [Monday], so some guys are going to be on a plus-one day," Porter said. "We're going to get through today and make sure we don't have to use a long guy, and see how the game pans out and set the rotation going forward."

The Astros went into Wednesday's game with 24 players on their roster and would have to add another player. General manager Jeff Luhnow said Triple-A starters Brad Peacock and Asher Wojciechowski are "firm candidates" to be called up.

Wojciechowski is 6-4 with a 2.83 ERA in 16 games (15 starts) at Triple-A this season. Peacock is 6-2 with a 2.73 ERA in 14 games (13 starts) with Oklahoma City. Luhnow was asked when first baseman Jonathan Singleton and outfielder George Springer would be called up. Springer is hitting .349 with 10 homers and 28 RBIs in only 31 games at Triple-A this year.

"They're Triple-A, and that's where they'll stay for now," he said. "We're excited about both Singleton and Springer, and feel that their time will come."

Barnes says back tightness shouldn't be concern

BALTIMORE -- Astros outfielder Brandon Barnes left Wednesday's game with lower back tightness, but said he doesn't expect to miss much time. He said he felt his back tighten up during his last at-bat of the 11-0 win over the Orioles.

"I didn't want to push it," Barnes said. "I should be fine. I didn't want it to get any worse."

Meanwhile, Astros relief pitcher Travis Blackley was sporting a black left eye which was the result of being struck by a ball during batting practice. Blackley walked off the field under his own power for further tests and was available to pitch Wednesday.

"I was glad I didn't have a concussion," Blackley said. "It really didn't hurt. It looks worse than it is. Unfortunately, it had to happen and I'll have a good black eye for a bit."

Brian McTaggart is a reporter for MLB.com and writes an MLBlog, Tag's Lines. Follow @brianmctaggart on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.