Team USA'a player insults Leafs prospect playing for Team Canada.

Matthew Tkachuk and Mitch Marner are teammates in the OHL for the London Knights.

Both will represent their respective country at the World junior hockey championships, but will be opponent on opening day when Marner's team Canada will face Tkachuk's team USA.

Tkachuk was asked what will it be like to face his lineman in today's game. He wasn't sure what to respond, but did not miss the opportunity to say that Marner is like a little rat on the ice.

Marner wasn't very tender either when talked about his teammate's ability to get under people's skin and to get dirty to get the job done.

The two will certainly be the other team's focus, as they both are key players for Canada and USA.

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