49ers' Aldon Smith breaks Fred Dean, Reggie White sack records

San Francisco 49ers outside linebacker Aldon Smith is rewriting the record books for both the 49ers franchise and the NFL.

With two sacks in the 49ers' 16-13 overtime loss to the St. Louis Rams on Sunday, Smith brought his league-leading total to 17.5. Smith now has the franchise record for sacks in a season, formerly held by Fred Dean.

Smith didn't stop there. His 31.5 sacks in the first 28 games of his career broke the record of 31 held by Reggie White for players in their first two seasons. Smith was drafted with the seventh-overall pick in the first round of the 2011 draft out of Missouri, and he has not disappointed. He was the fastest player to reach 30 sacks in his career before passing White's record in Sunday's game. With four games still remaining, Smith will have a chance to continue breaking NFL records this season.

Sacks didn't become an official state until 1982.