WASHINGTON, DC - MAY 18: Nick Markakis #21 of the Baltimore Orioles hits a home run in the eleventh inning against the Washington Nationals at Nationals Park on May 18, 2012 in Washington, DC. Baltimore won the game 2-1. (Photo by Greg Fiume/Getty Images)
Friday's interleague baseball
Highlights from games between the National and American Leagues on May 18.