The San Francisco 49ers will have to do without WR Mario Manningham for the remainder of the season as he suffered an ACL and PCL tear in his left knee. The 49ers will make the playoffs this year, but they will have to depend on their depth at receiver to propel them to the big game. Click here to read more about Manninghams injury http://espn.go.com/nfl/story/_/id/8778509/sources-mario-manningham-san-francisco-49ers-torn-acl-pcl-left-knee