"It's a real honour to get the chance to represent my country in a tournament for the first time," said Mattheos before Friday's home game against Kootenay, "I'm really excited for the opportunity."
"It was an advantage for him to have some time with us at the end of last year," said Brandon GM/Coach Kelly McCrimmon, "He hasn't contributed a whole bunch offensively. In terms of learning the game, playing the game the right way, the things we want our players to stress, he's picking up those things real well. He's going to continue to improve, develop and become a real good player."
Mattheos, the first overall pick in the 2014 WHL Bantam Draft, has two assists in five games so far in his rookie season with the Wheat Kings.
"It's been a good experience so far," said Mattheos, who missed last February's Canada Winter Games because of injury, "I'm trying to learn new things every day, tighten up my game, limit from my mistakes out there and play the best I can."
Wheat Kings' prospect Ian Mitchell, the club's second round pick in the 2014 Bantam Draft, and Roblin product Josh Brook of the WHL's Moose Jaw Warriors were among the other 65 players named to play in the tournament.
Mitchell has one goal and six points in 12 games with the AJHL's Spruce Grove Saints this season while Brook has Brook has two assists in five games with the Warriors this year.
The 66 players will be divided into Canada Black, Canada White and Canada Red at some point closer to the start of the tournament.
The World Under-17 Hockey Challenge runs from November 1-7 in Fort St. John and Dawson Creek, British Columbia.