Philadelphia Flyers Using Mac Miller-Inspired ‘Knock Knock’ Shirts as Motivation During Stanley Cup Playoffs

The Philadelphia Flyers have their sights set on a Stanley Cup championship this season, and to help themselves accomplish the feat, they're turning to Mac Miller for some motivational words.

The Flyers have created playoff-themed shirts declaring that they want 16 "Knock Knocks," referring to the Miller song of that name they play after every win. The shirt also includes a quote from Jaromir Jagr on the sleeves, according to the Philadelphia Daily News.

HBO's 24/7: Road to the Winter Classic originally pulled back the curtain on the Flyers' postgame routine, getting the song stuck in many a head around the country. Now, the Flyers will be hoping to have it stuck in their opponents heads all offseason long.

The Flyers open against the Pittsburgh Penguins on the road Wednesday night.