On the opening drive of the game, Eddie Lacy took a handoff from Aaron Rodgers and Sio Moore met him in the backfield for a loss.
On his first play from scrimmage, Matt Schaub tossed the ball outside to James Jones for a gain of nine.
Maurice Jones-Drew took a handoff from Schaub, broke an A.J. Hawk tackle and scampered 40 yards into the end zone to punctuate the first Oakland possession.
In the latter stages of the first quarter, Marquette King boomed a 58-yard punt which placed the Packers inside their own 20, one of four inside the 20.
On a third and seven, LaMarr Woodley brought the rush off the edge and sacked Aaron Rodgers to force a punt.
James Starks took a pitch from Aaron Rodgers, but Khalil Mack was able to hit the RB in the backfield for a loss.
With just under five minutes left in the half, Marquette King had another impressive punt which forced the Packers to start their drive at their own 14.
On third and four, Matt Schaub found Rod Streater for a large gain and a first down.
In the final minute of the first half, Khalil Mack intercepted a Matt Flynn pass and returned it for a short gain.