Late in the 2015 Grey Cup -- the Super Bowl of the Canadian Football League -- Edmonton receiver Dorel Walker was open deep down the right sideline. His team was scrambling to overcome a 20-18 deficit, and a catch would put the Eskimos in scoring position.
As the ball approached, Ottawa defender Brandon Sermons slammed into Walker and shoved him away. The pass fell incomplete. The Edmonton sideline erupted to protest an obvious instance of pass interference. Coach Chris Jones challenged the no-call, and the CFL replay official quickly overturned it. Having rightfully advanced 37 yards, the Eskimos soon scored the championship-clinching touchdown.