He'll hope to be even better for the Baltimore Orioles.A day after being traded to the Orioles, Feldman takes the mound in Chicago against the White Sox on Wednesday night.Feldman, who went 7-6 with a 3.46 ERA in 15 starts for the Cubs, was traded Tuesday along with catcher Steve Clevenger to Baltimore (47-37) for pitchers Jake Arrieta, Pedro Strop and two international signing bonus slots."He's a proven veteran starting pitcher, and he should help stabilize our rotation in the second half of the season," executive vice president of baseball operations Dan Duquette told the Orioles' official website.Originally scheduled to pitch Tuesday for the Cubs, Feldman has an immediate chance to help the Orioles' inconsistent rotation. The right-hander allowed three runs without a walk in six innings of a 5-4 win at Milwaukee last Wednesday.Feldman returns to the AL after spending his first eight seasons pitching for Texas, including 2005-06 with Showalter as manager. He is 2-0 with a 1.89 ERA in three starts against the AL this year."He's a guy with some American League background," Showalter said. "Scotty is what he is. He's a competitive guy."Feldman has allowed two runs and struck out 12 over 14 innings to win his last two starts against the White Sox. Most recently May 29, when he gave up those two runs and fanned seven in six innings of a 9-3 win.He'll try to help the Orioles bounce back after their four-game winning streak ended with a 5-2 loss to Chicago on Tuesday. Brian Roberts homered for the first time since 2011 and Nick Markakis added three hits but Adam Dunn's two-run homer highlighted a three-run seventh for the White Sox (33-47), who snapped a five-game skid.Playing his second game since missing almost three months with a knee injury, Roberts is 7 for 18 (.389) with that home run and three RBIs in five games this season. He's batting .338 with five homers and 12 RBIs in his last 18 versus Chicago.Dunn has hit .315 with nine home runs and 23 RBIs in his last 21 games for the White Sox, who won for the ninth time in 32 contests."We know how good we are. We know we've got a hell of a road ahead of us. We did it to ourselves," winning pitcher John Danks said. "But at the same time, we know how capable we are of going on a run. We just hope that we're able to do it starting now. We know we're running out of time."Dunn is 1 for 10 with four strikeouts versus Feldman.Scheduled Chicago starter Hector Santiago (3-5, 3.59 ERA) takes the mound looking to bounce back after he could not hold a 5-0 lead and allowed five second-inning runs, seven hits and walked three while failing to get out of the third in Friday's 19-10 loss to Cleveland.The left-hander is making his first start against the Orioles, but he allowed two homers over two innings of two relief appearances versus Baltimore last year.Nolan Reimold homered in his only at-bat versus Santiago, and is batting .383 while hitting safely in all 13 career games versus Chicago. The outfielder went 1 for 3 on Tuesday in his return from missing almost two months with a strained right hamstring.