"He's the guy that sets the bar that everybody else is going to aspire to get to," coach Dave Cameron said. "We think we have a lot of guys that were captain material but picking 'Mac' actually was pretty easy."
McTavish will try to lead Canada to a WJC title after it lost to the United States in the 2021 championship game.
The 2022 WJC will be held Aug. 9-20 at Rogers Place in Edmonton. The tournament originally was scheduled for Dec. 26-Jan. 5 but was postponed Dec. 29 because of concerns surrounding the coronavirus.
RELATED: [World Junior Championship schedule| Group B preview]
Canada will play in Group A, along with Finland, Czechia, Slovakia and Latvia. The United States, Sweden, Switzerland, Germany and Austria will play in Group B.
Latvia was added to replace Russia, which has been banned from international play because of its invasion of Ukraine.
McTavish, selected by the Anaheim Ducks with the No. 3 pick of the 2021 NHL Draft, began last season with three points (two goals, one assist) in nine NHL games, and after a short stint with San Diego of the American Hockey League, the 19-year-old was returned to the Ontario Hockey League. He played five games with Peterborough before being traded to Hamilton on Jan. 9. McTavish helped Hamilton win the OHL championship with 16 goals in 19 playoff games, and his eight points (six goals, two assists) in five games tied for the lead at the Memorial Cup.
"In simple terms, he's a hockey player," Cameron said. "Everything about him shows that. Very attentive in meetings, asks the right questions, works as hard as anybody off ice, has no ego, and his on-ice performance speaks for itself. He's played in the NHL, and he's got a long NHL career ahead of him."
The top four teams in each group will play in the quarterfinals Aug. 17. The semifinals are Aug. 19, and the championship and third-place games are Aug. 20. All games will be shown on NHL Network in the United States and on TSN in Canada.
There will be no relegation round, meaning the same 10 teams will play in the 2023 WJC, which will be held Dec. 26-Jan. 5, 2023, in Halifax, Nova Scotia and Moncton, New Brunswick.
Here's a look at each Group A team, in predicted order of finish: