Most fans feel the addition of Premier League academy sides to the EFL Trophy "undermines the integrity of the competition", according to the Football Supporters' Federation.
Sixteen category one academy sides will play League One and Two clubs in a bigger 64-team competition in 2016-17.
The change to the former Johnstone's Paint Trophy is a one-season trial.
"The reaction from the overwhelming majority of fans to the news has been incredibly negative," said a statement.
Read more here http://www.bbc.co.uk/sport/football/36530076
Complete the CFU Match Day survey here
Contact CFU | Join CFU | News | Join CUFC Lottery
(It costs just 20 pounds to join CFU and your membership makes a difference) CFU.
CUFC Lottery supporting CRY click here www.play2winlottery.co.uk/bull-cry.html