Is Durant a Rookie?

What is the rules regarding what constitutes a rookie in the CFL?

http://www.cfl.ca/roster/show/id/801

With those stats even though it is his 3rd year in the NHL or NFL he would be considered a rookie this year...

Anyone know?

I think because he has been on the 42 man roster in the past that he is not a rookie.

but given that prior to this season he had 2 plays would that have been declared his rookie season? In the NHL it's total games played I believe and ditto for the NFL. Just curious as if Crandall goes down or falters Durant could easily be a candidate for ROTY if he keeps playing this way

Yes, it is games played. And he played in 18 games last year. No rookie of the year for Durant.

Where "played in" = "dressed for"