The 49ers have suspended RB Brandon Jacobs on Monday for the final three games of the season after  a series of posts on social media sites (Instagram and Twitter) addressing his lack of playing time this past weekend. Jacobs had posted a few pic on Instagram while he was on the Giants along with a pic of his Super Bowl rings then said, “I am on this team rotting away so why would I wanna put any pics up of anything that say niners,” Jacobs said. “This is by far the worst year I ever had, I’ll tell you like I told plenty others.” He then took to Twitter to defend what he posted, but Niners don’t care. The 49ers made the announcement about two hours after coach Jim Harbaugh’s news conference, but provided no explanation for why Jacobs had been disciplined. It is doubtful he would return for the playoffs. Check out his tweets after the jump… GameTimeGirl