The 49ers are reportedly interested in Peyton Manning.
Mortensen on Twitter: "Third team in Manning race that has emerged is 49ers - Manning worked out for Harbaugh & took physical this week"
This would make a lot of sense on many levels. The 49ers have recently signed Randy Moss, who along with Michael Crabtree and Vernon Davis would give Manning a pretty potent receiving corps to work with. San Francisco also has a strong running game and stout defense, so the addition of Manning would quickly make the 49ers one of the favorites in the NFC.