PLYMOUTH, Mich. — Canada finished the World Junior Summer Showcase winless after a 5-1 defeat against the United States on Saturday.

The Canadian squad went 0-3 in the exhibition tournament. They also had a 2-1 overtime loss to Finland and a 5-1 defeat against Sweden earlier in the week.

"I was happy with how we played. It's like coach said, it's coming here and knowing the system so when you come in December you know what you have to do, you know how you have to play," said Canada's Mitch Marner.

"Obviously you always want to win, especially with Team Canada, but this week was all about learning and making sure you're ready for December. We didn't come here to play easy teams, we wanted to challenge ourselves in summer time and make sure that we know what we're going to face in December."

The Canadians outshot the Americans 22-10 in the opening period but found themselves down 2-0 after 20 minutes.

Jack Roslovic opened the scoring just 2:19 into the game and Jordan Greenway added another at 18:48.

Logan Brown made it 3-0 less than six minutes into the second period and Clayton Keller scored on the power play at 13:07 of the third.

Nicolas Roy finally put Canada on the board 41 seconds after Keller's goal, but Brock Boeser added one more with seven seconds remaining in regulation.

Tyler Parsons made 35 saves for the U.S. Connor Ingram and Evan Cormier split duties in net for Canada. Cormier took over with 8:14 to play in the second when it was already 3-0 for the U.S.