The fine stemmed from a hit that Pollard delivered Sunday on Tennessee Titans wide receiver Justin Gage. The league ruled Pollard unnecessarily struck a defenseless player in the head area.
This isn't the first time the league has come down on the safety. Pollard was fined $5,000 for a Week 6 hit against the Kansas City Chiefs.
In other NFL discipline news, Arizona Cardinals offensive tackle Jeremy Bridges was fined $20,000 for unnecessary roughness. He hit Takeo Spikes after the San Francisco 49ers linebacker made an interception. It is Bridges' fifth infraction for unnecessary roughness since the start of the 2009 season.
Bridges' teammate, linebacker Clark Haggans, was fined $10,000 for unnecessary roughness. He struck a 49ers player in the head and neck area with his helmet during a third-quarter running play.
"I didn't realize it at the time," Oher said of the NFL's policy, according to The Baltimore Sun. "I was just letting mainly my family and friends know that I was OK. Letting them know that I was OK was way more important than getting a fine."
Players, coaches and football operations personnel can only use Twitter, Facebook and other social media up to 90 minutes before kickoff, and after the game following media interviews.
The Associated Press contributed to this report.