Green Bay defensive lineman Mike Daniels' strip sack of Russell Wilson deep in Seattle territory in the third quarter set up Ty Montgomery's 6-yard touchdown run on the next play to spark the Packers' 17-9 win on Sunday.
Packers quarterback Aaron Rodgers was 28 of 42 for 311 yards and added a 32-yard touchdown pass to Jordy Nelson to make it an eight-point game late in the third quarter.
Rodgers' regular-season streak of passes without an interception ended at a career-high 251. The Seahawks defense reinforced by the return of safety Earl Thomas bottled up receivers from making many big plays and put plenty of pressure on Rodgers.
But the Packers started denting Seattle with runs or quick passes to Nelson, Randall Cobb and Montgomery in the second half, chewing up clock in the process. A 12-play, 53-yard drive that took up more than 5 minutes ended with Mason Crosby's 40-yard field goal with 8:01 left to make it a two-score game.
Green Bay's defense had an even better debut, especially considering how maligned the Packers were against the pass last season.
Seattle managed just three field goals. Wilson was held to 14 of 27 for 158 yards. The Packers held decisive edges in total yardage (370-225) and first downs (26-12). Green Bay held the ball for 39 minutes.
Seattle cornerback Jeremy Lane was ejected after referee John Parry said he threw a punch during a scrum with Packers receiver Davante Adams.
The tussle occurred around the Packers 30 during a play in which Nazair Jones intercepted Rodgers at 9:26 of the first quarter. It was Rodgers' first interception since Nov. 13, 2016, at Tennessee.
Tensions were already high between the teams early in the game. Rodgers was picking on Lane in the secondary, with Cobb whistled for taunting following a 14-yard gain while being defended by Lane.