Ambles and Decoud were disciplined for their roles in a post-game altercation following the Argos’ 28-23 win over the Elks on Oct. 15.
Montreal Alouettes defensive back Adarius Pickett was also fined for a hit on Ottawa Redblacks receiver Ryan Davis during Montreal’s 34-30 victory on Oct. 14.
Meanwhile, B.C. Lions defensive lineman Woody Baron was disciplined for unnecessary roughness on Winnipeg Blue Bombers offensive lineman Geoff Gray in the Lions’ 40-32 win on Oct. 15.
The league did not disclose the figures of the fines.