Francisco Alvarez clubs walk-off HR, sends Mets past O's

(Photo credit: Gregory Fisher-USA TODAY Sports)
Francisco Alvarez hit a walk-off homer in the ninth inning on Monday night for the host New York Mets, who earned a 4-3 win over the Baltimore Orioles in the opener of a three-game interleague series.

Orioles relievers Colin Selby, Keegan Akin and Seranthony Dominguez (3-3) set down 11 straight Mets -- nine by strikeout -- before Alvarez hit a 3-0 fastball over the center f