49ers' Colin Kaepernick throws pick-six on first two drives

San Francisco 49ers quarterback Colin Kaepernick threw consecutive pick sixes on the team's first two drives.

San Francisco 49ers quarterback Colin Kaepernick had just about the worst start imaginable Sunday against the Arizona Cardinals, throwing pick sixes on each of the team's first two drives. 

Through those two drives, Kaepernick completed as many passes to the Cardinals as his own teammates, going 2 of 4. That's good for a 16.7 QB rating.

The first interception was grabbed by Justin Bethel, who returned it 21 yards for the score. Tyrann Mathieu stepped in front of Anquan Boldin for the second pick, easily snagging the pass and high stepping his way to a 33-yard score. 

The interceptions are the first two for Kaepernick this season, who threw for 335 yards and two touchdowns in a 43–18 loss to the Pittsburgh Steelers last week. 

• Watch: Ravens WR Steve Smith has huge day against Bengals