He's hoping some pictures will change the league's opinion.
"I sent the photos, I sent everything. I mean, all they should need is the video. It's as clear as day," Brock said on Thursday.
Brock indicated he was fined $15,000 for the hit on Roethlisberger and has already filed an appeal with the league.
The fine came as a result of Brock falling into Roethlisberger's legs just as the quarterback released a pass for Heath Miller in the second quarter of the Steelers' 24-0 victory.
Brock said he was tripped by Pittsburgh lineman Marcus Gilbert and couldn't stop himself from falling into Roethlisberger.
"Fined by the NFL today for being "TRIPPED" by an o'lineman and fallin into the QB's legs! Smh if I only had super powers to stop mid air," Brock wrote on Twitter on Wednesday night.
A day later, his opinion hadn't changed.
"I have been in this league. I knew I was going to get fined. I just thought that was a no-brainer," Brock said. "But I'm going to appeal it, because it's clear as day -- I got tripped into the quarterback."
Roethlisberger on Wednesday was walking without a limp and participated fully in Steelers practice.
"It's sore, but it's doing a lot better," Roethlisberger said, according to the Pittsburgh Tribune-Review. The newspaper reported that Roethlisberger will not wear a knee brace for Sunday night's game against the Indianapolis Colts.
Information from The Associated Press was used in this report.