The Yankees and their fans had a fever, to borrow from Christopher Walken in the classic “Saturday Night Live” sketch. And the only prescription? Pettitte and Rivera. Victory number one for these 2013 Yankees, a much-needed, 4-2 defeat of the Red Sox at a very chilly Yankee Stadium, came courtesy of their two oldest players. The two most tenured active employees in pinstripes. While Derek Jeter slowly rehabilitates his left ankle down in Tampa, his fellow quintuple World Series champions restored some order to The Bronx before the Yankees, now 1-2, departed for Detroit. And you wonder, for about the 1,000th time in 19 years, where exactly the Yankees would be without the outstanding duo of 40-year-old Andy Pettitte and 43-year-old Mariano Rivera. “I’m glad I could contribute, obviously, and give us a good outing,” Pettitte said, in a cheery Yankees clubhouse. “Obviously, I feel real, real good and secure about things whenever I see that guy running in from the bullpen in the ninth inning.” “I always want to save the game. Not only for him, but for everybody else,” Rivera said. “But at the same time, it’s special when Andy goes there and does the kind of job he knows how to do and allows me to close the game for him.” Pettitte did the heavy lifting, as starting pitchers usually do, throwing eight masterful innings in his first start of the season. He needed just 94 pitches to give the Yankees’ non-closers a night off in the bullpen, inducing the Red Sox to hit into three double plays. Masterful.