Kevin King and rookie Josh Jackson were both docked $10,026 for unnecessary roughness/facemask penalties, according to ESPN's Rob Demovsky.
Undrafted rookie cornerback Tony Brown was fined the same price for unsportsmanlike conduct/taunting after defending a pass in the third quarter.
Brown, seeing his first extensive look at live game action in the NFL, stood over Lions receiver Kenny Golladay after breaking up the pass and glanced down at him for what seemed like a second.
This is the second consecutive week the league has fined members of the Packers' club. Two weeks ago against the Buffalo Bills, linebacker Blake Martinez was fined $13,369 for taking off his helmet in the midst of a minor fight after a play was over.