I found this info on CBC news
The new rules mean players entering the country will not have to isolate for the typical 14-day period after arriving in Canada.
To qualify, players will have to complete seven days of isolation before departing for Canada and show a negative PCR test for COVID-19 72 hours before their departure.
Once they arrive, players will have to spend another seven days in isolation at a designated hotel. While at the hotel, players will be tested on days one, three and seven of their hotel quarantine.
If the tests are negative, players will then be allowed to leave the hotel and train with their teammates in isolation from the general public.