The 2012 Canada-Russia Challenge, which see the top junior players from each country competing in a four game series begins at 11am et/8am pt on TSN, and TSN Mobile TV.
Team Canada's roster features 13 NHL first-round draft picks including the Florida Panthers' Jonathan Huberdeau, the Columbus Blue Jackets' Ryan Murray, the Winnipeg Jets' Mark Scheifele and the Toronto Maple Leafs' Morgan Rielly.
"As reported by Metro Halifax on Wednesday, MacKinnon - the 16-year-old star who could go first overall in next year's NHL Draft - will not be able to take part in the four-game primer for the 2013 World Junior Hockey Championship.
The rule says players 17 and younger who have not been a part of Canada's summer Under-18 program are not eligible to participate in the Under-20 development camp. Hockey Canada announced earlier this month that the Canada-Russia Challenge - which has games at the Halifax Metro Centre on Aug. 13 and 14 - would replace its usual summer evaluation camp this year."