The five-time Pro Bowler announced his retirement Thursday:
A two-time first-team All-Pro, Dumervil walks away from professional football with 105.5 career sacks, which put him fourth among active players, per Pro Football Reference. He led the 49ers with 6.5 sacks last season.
A fourth-round draft pick by the Denver Broncos in 2006, Dumervil emerged as one of the NFL's premier pass-rushers for more than a decade. He made an instant impression with 8.5 sacks in 13 games as a rookie and led the NFL with 17 sacks in 2009.
Dumervil recorded at least 8.5 sacks in seven of his first nine seasons. In addition to playing with the Broncos and 49ers, he spent four years with the Baltimore Ravens.