WAS -105 - the Marlins have lost 8 straight games ... Edward Cabrera highly touted rookie for Miami but now making his MLB debut ... Josiah Gray making his 6th start of season which gives the Nationals rookie the key experience edge here ... Gray has a 2.86 ERA since coming to Washington from the Dodgers ... Washington on 27-13 run last 3 years versus Miami ... Nationals 8-3 versus Marlins this season