Auston Matthews is making an immediate impact both on and off the ice.

While his jersey wasn't made available for purchase until after his four-goal debut with the Toronto Maple Leafs, it has apparently been flying off the shelves in the days since.

Since going on sale on Thursday, Auston Matthews has best selling jersey in the NHL, according to Fanatics. pic.twitter.com/bjaMD5uJGC — Darren Rovell (@darrenrovell) October 16, 2016

Many were worn during Matthews' home debut, a 4-1 win over Boston on Saturday.

The #leafs had 700 Matthews sweaters made for their team store tonight and, by the looks of the crowd, many have already been purchased. — Chris Johnston (@reporterchris) October 15, 2016

The high rate of sale makes sense, seeing as the Maple Leafs' fan base is arguably the most rabid in the NHL, and Matthews is a bona fide superstar in waiting. It also helps that he hails from Arizona and is turning heads all over the United States.

Don't count on Matthews Mania dying down anytime soon.