It didn't seem like much. Last night with the score 38 - 31 for Toronto with about 2 min left. On second down Joseph completed a pass in the flat to Robertson. Robertson had about 4 yards in front of him for the 1st down. Scot Gordon came down and made a text book perfect solo tackle in the flat and stopped Robertson right were he touched the ball short of the first down by about 3 yards or so.
I saw the play developing and was thinking aww crap Robertson vs. Gordon and he only needs a few to get the first I figured forsure he would have the forward momentum to get the first. All the credit in the world to Gordon, saved time, forced the punt, a TD and bonehead coaching on the Argos part and Riders win. With out that play I think the game may have ended very differently.