During the 2009 Grey Cup on the second last play of the game, Sean Lucas of the Saskatchewan Roughriders, lined up as a slot back, behind a defensive linesman, during the missed kick attempt by Montreal.

With 11 players already on the defensive line, and with 1 player, Jason Armstead, in the end-zone to return any missed kicks, Sean Lucas, a defensive linebacker, was on the field as a defender, & therefore, the 13th man on the field, causing the penalty on the play, and providing Montreal with another opportunity to win the 2009 Grey Cup.

[1] Saskatchewan finished ahead of Calgary in the standings because they went 2-0-1 in their 3-game head-to-head series.

Running backs Wide receivers Slotbacks Defensive linemen Defensive backs Special teams Practice roster Italics indicate Import player Roster updated 2009-11-23 Depth Chart • Transactions 47 Active, 17 Inactive, 13 PR → More rosters [2] [3] [4] [22] *-Team won in Overtime.

Date and time: Sunday, November 22, 4:30 PM Mountain Standard TimeVenue: Mosaic Stadium, Regina, Saskatchewan