Smith's crisp day leads 49ers past Jaguars

SAN FRANCISCO -- Alex Smith threw short touchdown passes to Frank Gore and Vernon Davis and his solid outing in a 20-3 victory over the Jacksonville Jaguars on Sunday highlighted the kind of mistake-free day San Francisco coach Mike Singletary has sought for weeks.

Joe Nedney kicked field goals of 46 and 27 yards for San Francisco (5-6), which snapped the Jaguars' three-game winning streak and spoiled the Bay Area homecoming of Jacksonville coach Jack Del Rio and running back Maurice Jones-Drew.

The Jaguars' loss clinched the AFC South title for the unbeaten Indianapolis Colts, who rallied to win at Houston earlier Sunday.

Jones-Drew, a prep star at powerhouse De La Salle High School on the other side of San Francisco Bay, ran for 75 yards to become a 1,000-yard rusher for the first time in his career.