The controversy erupted on social media after Ravens tight end Isaiah Likely had a catch that was ruled a touchdown, but was overturned after further review because he didn't get a third foot down and make a football move before losing possession of the ball.
Ravens beat reporter Jeff Zrebiec talked to the NFL Vice President of Instant Replay Mark Butterworth to discuss the issue.
"The ruling on the field was a touchdown," said Butterworth. "We quickly looked at the play. The receiver controlled the ball in the air, had his right foot down, then his left foot down. The control is the first aspect of the catch. The second aspect is two or a body part in bounds, which he did have. Then the third step is an act common to the game and before he could get the third foot down, the ball was ripped out. Therefore, it was an incomplete pass.
The reversed call cost the Ravens a potential win, but the anger was also in part due to an interception that seemed to have taken place that would've gone in the Ravens' favour.
However, it was ruled a catch by Steelers quarterback Aaron Rodgers.
"The offensive player had control of the ball," said Butterworth. "And as he was going to the ground, there was a hand in there, but he never lost control of the ball and then his knees hit the ground in control. Therefore, by rule, he is down by contact with control of the ball."
The calls didn't stop there.
Baltimore was also rung up on defensive tackle Travis Jones during a field goal attempt that awarded the Steelers a first down near the Ravens' goal line.
Between the Likely touchdown reversal and this penalty on Jones, the Steelers had a +11 point swing in their favour.
The Ravens eventually lost the game 27-22, giving the Steelers sole possession of first place in the AFC North division.