UNIONDALE, N.Y. — Venturing into the team store at the Islanders’ swanky practice facility, one couldn’t immediately see any Mathew Barzal merchandise.



The friendly shopkeeper then flipped around a sweater on the rack with Barzal’s No. 13 on it. Signed, no less.



“He’s been our top seller both for jerseys and t-shirts over the past month, both here at and the store at Barclays Center,’’ said the store attendant.



So yeah, Mr. Barzal has arrived.



Second in the NHL rookie scoring race with 24 points (6-18) in 24 games, Barzal is turning heads not just in Islanders country but now around the league with an electrifying display of talent.



“It’s been fun to watch. It makes you wish you could do some of the things he can do,” Islanders superstar John Tavares told The Athletic, with a straight face, I might add. “His ability to use his edges, just to be so hard to defend.