Can a CFL player on the practice squad go to the NFL in the same season?

Generally, yes. However, there are rules regarding

players being under contract to only one team. If a

CFL player has an opportunity to play in the NFL, he

first gets released from his CFL duties. Then, he

signs an NFL contract. Dominique Dorsey recently

missed the first half of the 2009 CFL season while

he was signed with the Washington Redskins. They

released him just before the season opener and he

returned to his CFL team, the Toronto Argonauts.