Maatsen was at Stamford Bridge under coach Mauricio Pochettino for the first half of the season.
He has since moved on loan to Borussia Dortmund, where he is getting regular game time.
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"I had trust at Chelsea but with the pressure they are under it is sometimes difficult for a manager to let everyone play especially young talents with potential," Maatsen said to The Guardian.
"He has to make decisions for the team.
"You have to deal with it as a young player. Sometimes it's not fair but maybe it's the best decision for the club and other teammates. I appreciate that. But I want to play football."
Football.london adds that Chelsea would prefer to sell Maatsen in the summer transfer window.