Sendejo was penalized 15 yards for unnecessary roughness when the play occurred during the third quarter of the 29-29 tie.
Vikings coach Mike Zimmer said Wednesday on his weekly radio show that an official told Sendejo he did everything right while making the tackle.
The heavy fine is partially due to Sendejo being a repeat offender. He was cited twice last season and received a one-game suspension for the second offense.
--Field Level Media