Hes under contract with the Dolphins and the CFL recognizes NFL contracts so he will need the Dolphins permission to do it....I dont think they would give him permission because of the injury risk, but you never know....besides all that, Ricky would have to want to do it and who knows what he wants....I have a feeling that hes not all that upset about missing the year, because he go where ever he wants to go and do whatever he wants to do....
It could happen if the agreement is made where part of what Ricky makes goes to the Dolphins. But it's unlikely because there is a possiblity that he could get hurt.