Dre Greenlaw - SIC score 10By video, suffered left Achilles tendon rupture on sideline while running onto field - officially ruled out with Oren Burks to fill in.The fifth-year linebacker was carted to the locker room and reportedly could not put weight on his left leg.He will undergo an MRI on Monday to confirm the injury, but the on-field examine is typically accurate.The 49ers reported he suffered an Achilles injury, but listed him questionable to return.Greenlaw had 3 tackle assists before exiting in the second quarter.He had 75 solo tackles and 1.5 sacks on the season.Want to know the Truth on Injuries?To receive our injury analysis first - sign up here for our free notifications and sign up here for our free newsletter. Because Injuries Matter!