By Alek Arend During the two short months Tom Brady was retired, a popular rumor circulated throughout NFL circles. There was a strong belief he’d come out of retirement to play for his childhood-favorite San Francisco 49ers. The rumor wasn’t so far fetched to some. Plenty of popular NFL experts shared the same prediction. After all, Brady has long been linked to the historic NFL franchise. However, on Monday Brady’s father show down the rumor that his son was going to un-retire to play for the 49ers. “Brady Sr. also downplays talk of Tom thinking of un-retiring to play for hometown 49ers. Say…