NFC West leads way in rookie sacks

A quick look through the NFL rookie sack leaders shows NFC West teams with three of the top 10 producers, led by the San Francisco 49ers’ Aldon Smith with 9.5.

This is how it should be.

2011 NFL Rookie Sack Leaders

NFC West teams drafted two of the first three outside pass-rushers in 2011.

Denver’s Von Miller, the first pass-rusher chosen, leads all rookies with 10. 5 sacks. The 49ers’ Smith, drafted seventh overall, was the second outside rusher chosen. The St. Louis Rams’ Robert Quinn, tied for eighth on the list with five sacks, was the third outside rusher chosen. Houston’s J.J. Watt has more sacks than Quinn, but as a 3-4 defensive end, he’s not a pure outside rusher.

Arizona’s Sam Acho has outproduced his draft status as a fourth-round choice. Acho has five sacks in the Cardinals’ past seven games, though three of Arizona’s past four opponents have held him without one.

Sacks aren’t the only measure of a pass-rusher’s performance. The good ones tend to rack up a lot of them, however.

Charles Haley holds the 49ers' rookie record since the NFL began tracking sacks in 1982. He had 12.5 sacks during the 1986 season. Dana Stubblefield had 10.5 sacks during 1993, his rookie season.

Smith needs 3.5 sacks over the 49ers' final four games to pass Haley. He has all 9.5 of his sacks in the 49ers' past nine games, including two during the 49ers' division-clinching victory over St. Louis on Sunday.