Key takeaways: Yankees 9, Red Sox 2

NEW YORK – For the rival Red Sox and Yankees, a rubber match is now set for Sunday afternoon in the Bronx. Not for the finale of this four-game set, but for the season series. And that could have implications. David Ortiz Football Jersey Giveaway is Sept. 7! After the Yankees salvaged the nightcap of Saturday’s split doubleheader by handing the Red Sox a 9-2 loss, it put the teams in a 6-6 tie head to head this season. Whichever team comes away with a win on Sunday would own the tiebreaker should the rivals finish with the same regular-season…