Yankees (81-51) at Red Sox (76-56), 7:05 p.m. ET The stretch run officially begins Friday for the Yankees, when they play the first of three weekend games against the Red Sox at Fenway Park. New York enters the weekend with a 4 1/2-game lead over Boston in the American League East, having defeated the Chicago White Sox, 7-5, on Thursday to avoid a three-game sweep. The Yankees have won 10 of their last 14 games, though they are just 3-4 in their last seven. The Red Sox enter the series winners of six out of seven. "This is the best...