

The former St Mirren forward, who had spells with Rushden & Diamonds, Gillingham, Norwich, Eintracht Braunschweig in Germany, Millwall, Coventry, Barnsley, Blackburn Rovers, Wallsall and Grimsby prior to joining the Buddies, had been training with the Rugby Park side with a view to winning a deal.
Jackson, who has 49 caps for Canada, will be available for selection for Killie's home match with Livingston this weekend.
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Hide AdThe 32-year-old, who hit six goals for St Mirren last season, joins up with compatriot Liam Millar, who is currently on loan at Kilmarnock from Liverpool.