When the NHL's Toronto Maple Leafs and their arch-rivals, the Ottawa Senators, play each other. Intense during regular season but even more so during the playoffs. Every Battle of Ontario in the post-season has been won by the Maple Leafs(4-2 in 2000, 4-0 in 2001, 4-3 in 2002, 4-3 in 2004).
by stan21 April 25, 2006