Blue Jays fans bearing Canadian flags cheer during the Game 7 World Series watch party at Nathan Philips Square in Toronto on Saturday. The Blue Jays, Canada’s only MLB team, were a salve for a country hit by President Trump’s threats and tariffs.

As he strode into Rogers Centre on Saturday, Vladimir Guerrero Jr. chose an outfit to meet the national moment.

Rather than the over-curated drip so often associated with the modern athlete, he chose to don the hockey jersey of one of Canada’s greatest clutch performers, Marie-Philip Poulin. Known for scoring gold-medal-winning goals in three of the past four Olympic Games, Ms. Poulin is one of the best to play Canada’s national sport.

The Toronto Blue Jays star’s sartorial choice was an implicit acceptance of a role Ms. Poulin has often sho

See Full Page