Vikings cornerback Chris Cook's day ended abruptly in the third quarter when he made contact with an official.

Cook gave up an incredible 46-yard touchdown catch to Bears wide receiver Alshon Jeffery with 5:24 left in the third quarter to give the Bears a 20-10 lead. After the play, Cook made contact with an official, leading to a 15-yard unsportsmanlike penalty and an ejection.

It was the second touchdown Cook allowed to Jeffery, who scored on a 80-yard touchdown on the second play of the second half.

Marcus Sherels replaced Cook as the right cornerback with Robert Blanton remaining as the nickel cornerback. The Vikings were thin at the position heading into the game with a fractured sternum injury to Josh Robinson.

Jeffery broke the Bears' franchise record for receiving yards in the third quarter. He has 10 receptions for 234 yards and two touchdowns after three quarters.

Vikings quarterback Christian Ponder was ruled out due to concussion symptoms. Matt Cassel will finish the game at quarterback.