Be real nice if Covid was gone by the summer; I would not bet on that though and i for one have no desire to experience that virus. Maybe most of society - including CFL rules makers - will consider Covid just another common cold type nuisance by then, and the anti-vaxxers will get to say they were right, and the whole idea of vaccine passports or other public health measures will just fade away. And then there could be no concerns or restrictions for CFL teams to worry about, and they can hire whoever.
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