Editor's note: The above video is from March 31, 2016.
The 49ers' voluntary offseason program opened on Monday, and Colin Kaepernick was in attendance, a source told CSNBayArea.com's Matt Maiocco.
Editor's note: The above video is from June 4, 2014.
The quarterback carousel has been front and center this NFL offseason, with the most recent domino falling Thursday as the Browns officially signed Robert Griffin III.
Four weeks ago, the agents of quarterback Colin Kaepernick requested permission to seek a trade from the 49ers. Thus far, it appears the 49ers want to retain Kaepernick more than any other team wa