Is Tom Brady’s visit to San Francisco on Sunday simply a playoff preview or a preview of his future destination?The 45-year-old Brady, whose Tampa Bay Buccaneers visit the 49ers in Week 14, will once again be the story of the NFL offseason on multiple fronts. Will he finally retire and go about paying attention to his personal life, which has taken a hit this year with his very public divorce from former wife Gisele Bundchen?

Will he continue to play? Brady is set to be a free agent after the season and can’t be franchised by Tampa Bay. If Brady chooses to play again, will that be with the Buccaneers or some other team?

If Tom Brady goes elsewhere, expect the 49ers to be intrigued. Two general managers said last week they expect the 49ers to seriously inquire about Brady and Green Bay’s Aaron Rodgers depending on whether either or both of those quarterbacks decide to move on.

“The Brady scenario is easy, he’s free,” one GM said. “Rodgers has more moving parts because you don’t know what kind of Zen thought he’s going to have. He might say he wants out. I could also see the Packers moving on to Jordan Love if they can figure out the cap situation.

“But everybody knows the 49ers need a quarterback to win now.”