In October 2006, after failing to make the Red Wings roster on a tryout basis, the Toronto Maple Leafs signed him.
On February 14, 2009, Devereaux was recalled to play for the Maple Leafs again after he was put on re-entry waivers and no other team opted to claim him.
In the final game of the season, against the Ottawa Senators, Devereaux recorded his second career hat trick, scoring all three goals against Brian Elliott.
While competing in the Spengler Cup in Switzerland on 28 December 2009, Devereaux was collecting a loose puck from the offensive zone when he was caught with his head down and checked by HC Davos defenceman Beat Forster.
Devereaux participated in the 2011 season of Battle of the Blades, a figure skating competition broadcast in Canada on CBC Television.