Yankees win on Swisher's walkoff

Nick Swisher hit a two-run homer off Koji Uehara in the bottom of the ninth inning Wednesday to give the New York Yankees a 3-2 victory over the Baltimore Orioles that was tempered by news about a potentially serious injury to Jorge Posada.

Following the game, Yankees manager Joe Girardi revealed that Posada felt post-concussion symptoms Tuesday after getting hit by a foul ball. The star catcher sat out Wednesday and was sent to a neurologist for tests. His status for New York’s upcoming road trip was uncertain.

Losing Posada would be a blow to the AL East leaders, trying to repeat as World Series champions. Several major league stars have been sidelined by concussions for extended stretches this season, including Minnesota slugger Justin Morneau and New York Mets outfielder Jason Bay.

With the Orioles closing in on their first three-game sweep in the Bronx since 1986, Alex Rodriguez opened the ninth with a single on the first pitch from Uehara (1-1). Robinson Cano flied out and Swisher, hobbled by a stiff left knee, drove a 2-0 pitch to the opposite field and into the Baltimore bullpen in left-center.

It was Swisher’s 26th home run of the season and his third career game-ending shot. The previous one came exactly a year before, against Tampa Bay’s Dan Wheeler.