(AP Photo/Charles Rex Arbogast)
 
The regular warmup shirts for Michigan State and Duke attracted some attention on Tuesday night. 
 
The Blue Devils wore black t-shirts with EQUALITY in white letters as they prepared for their game in the Champions Classic at the United Center.
 
The shirts for the Spartans said WE TALK WE LISTEN on the front and IT'S NOT ABOUT ME IT'S ABOUT US on the back. 
 
The shirts were created after each team had preseason discussions about social justice and recent protests at sporting events throughout the country. 
 
The online reaction was a mix of praise and criticism. Some TV viewers wanted to know where they could buy the shirt.