The Winnipeg Blue Bombers and Montreal Alouettes will give the CFL's new instant replay system a test run on Friday night.
The CFL will use the exhibition game at Canad Inns Stadium to test the system, which, it should be noted, has not yet been approved for use this season.
Bombers head coach Doug Berry is on the fence when it comes to instant replay, but he's willing to give it a try.
"It slows the game down. That part I don't like," said Berry. "I can't say I'm against it, but I'm not real pro-instant replay, either. I believe that officials make the best call, and let's play football. Some are right, some are wrong. We've lived with it for 100 years."
The CFL's instant replay system allows for a team to challenge two officiating decisions per game, but not during the last three minutes of the second half or overtime.
The first challenge is a freebie, meaning a team won't lose a timeout if it loses the appeal. That also means a team can still use its first challenge even if it has burned both its first- and second-half timeouts.
The second challenge is a different story, however, as a team will lose a timeout if it loses the appeal. That also means a team must have a timeout remaining to use its second challenge.
In addition, if a team has used its first-half timeout and its second challenge occurs in the first half and is unsuccessful, it will forfeit its second-half timeout.
Game officials in the press box will send a signal to the referee if they think a call should be challenged in the last three minutes of the second half or overtime.
Only the head coaches can challenge a call, and they will do so by throwing a marker on the field, just as it's done in the NFL. Calls will be reversed only when the referee has indisputable visual evidence that the call should be changed.
Teams will have to bone up on what can and cannot be reviewed, because if the offence calls for a challenge on a play that is not "reviewable," the 20-second clock will not be reset.
Plays that can be reviewed include:
possession rulings in the end zone;
forward progress with respect to first down or goal-line;
passing plays -- complete or incomplete;
ball carriers ruled down by contact;
fumbles which occur prior to down by contact.
Plays that cannot be reviewed include:
status of the clock;
penalty calls and their administration;
forward progress not relating to a first down or goal-line;
force-outs on pass plays near a sideline;
recovery of loose ball in the field of play;