Tuesday, Oct 30, 2012 3:45 AM UTC

Smith almost perfect, 49ers flatten Arizona 24-3

John Skelton, Aldon Smith

Arizona Cardinals quarterback John Skelton (19) looks to throw as San Francisco 49ers outside linebacker Aldon Smith (99) watches during the first half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Paul Connors) (Credit: AP)

GLENDALE, Ariz. (AP) — On an almost perfect Monday night for Alex Smith, the San Francisco 49ers flexed their NFC West dominance with a 24-3 flattening of the Arizona Cardinals.

Smith completed 18 of 19 passes for 232 yards and three touchdowns two to Michael Crabtree and one to Randy Moss, as San Francisco (6-2) opened a two-game lead in the division and sent Arizona (4-4) to its fourth straight lost.

Smith’s only incompletion was dropped by a wide-open receiver.

Smith was 14 of 15 and for 146 yards and two touchdowns, both to Crabtree, to help the 49ers build a 17-0 halftime lead.

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