The Bronx Bombers usually don’t have much love for David Ortiz, but they’re willing to put rivalries aside for a good cause. On Dec. 3, Alex Rodriguez and Mariano Rivera will attend the Red Sox slugger’s celebrity golf tournament in the Dominican Republic. “My friends on the Yankees definitely deserve a vacation after a great season,” a diplomatic Ortiz tells Page Six. “We’ll see if their golf skills can come close to their baseball skills.” All proceeds benefit the David Ortiz Children’s Fund, which provides medical attention to underprivileged kids.