By Daniel Bates Aaron Rodgers’ backup came to the QB’s defense Friday. In the midst of all of the A-Rod related drama, former Packers wideout Greg Jennings chimed in calling the back-to-back MVP “selfish for reportedly wanting a $50 million payday. “Aaron Rodgers has been a very selfish guy,” Jennings told the “First Thing’s First” crew on FOX Sports 1. “I get it, he’s at the end of his career, and so it’s like, ‘Okay, I’m going to take whatever I can take.’ But you can’t do that and want to win.” Jennings also recalled a story of when he got his first big contract with the Packers, and Rodger…