St. Louis Rams quarterback Sam Bradford will miss the rest of the National Football League season with a torn ligament in his left knee, the team said Monday.

The Rams revealed the severity of the injury on their Twitter account after 25-year-old Bradford underwent an MRI scan.

Bradford was injured in Sunday's 30-15 loss to the Carolina Panthers.

Panthers safety Mike Mitchell pushed Bradford out of bounds on a scramble during the fourth quarter. Bradford walked off the field, but was taken from the sidelines to the locker room in a cart.

He had thrown for 1,687 yards with 14 touchdowns and four interceptions in seven games this season.

Bradford has been the Rams' starting quarterback since the club selected him with the top overall pick of the 2010 NFL Draft. He has thrown for 11,065 yards with 59 touchdowns and 38 interceptions in 49 games.