SAN FRANCISCO — Clay Matthews and the Green Bay defense spent a good chunk of the offseason focused on figuring out how to stop the read option and defend mobile quarterbacks like San Francisco's Colin Kaepernick.
Kaepernick left that much of a mark on the Packers' embarrassed unit in a 45-31 divisional playoff loss to the 49ers at Candlestick Park in January. Now they meet again in a second straight season opener between a pair of NFC powers.
"I'm sure they've been game-planning for us since training camp," 49ers tight end Vernon Davis said. "Any time you lose a game like that, you should be very mad."
Kaepernick rushed for a quarterback-record 181 yards and two touchdowns and threw for two more TDs.
The Packers have been forced to relive the game in the film room this week — even if many of Green Bay's players weren't part of it.