Following a Packers two-point conversion in the third quarter, Jets defensive end Muhammad Wilkerson punched Packers left tackle David Bakhtiari and right guard Josh Sitton. Richardson got involved in the scrum and ended up losing his helmet.
Richardson didn't disclose how much he was fined. Because he was ejected, Wilkerson will also receive an automatic fine.
"I've never really agreed with the fines anyway," Richardson said, "because it's only really on the defensive guy to get a fine. Unless the offensive guy blatantly punches somebody in the face or something crazy."
The Jets host the Chicago Bears on Monday night in Week 3.
- Ben Estes