Scott Feldman pitched six solid innings in his debut for the Orioles, who held on to win for the fifth time in six games after the White Sox threatened against Jim Johnson in the ninth.
Davis greeted Matt Thornton in the eighth with a two-run double after Nick Markakis and Adam Jones singled off Matt Lindstrom (2-3), giving the Orioles a 4-2 lead. Baltimore loaded the bases against Ramon Troncoso in the ninth, but Manny Machado forced the runner at the plate and Jones popped out to end the threat.
Darren O'Day (4-0) pitched a scoreless seventh for the win.
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