Van Persie was reported to be upset with not starting the last two games for the Yellow Canaries.
“Many times in football to win games you need these kinds of tensions,” Pereira was quoted as saying by ESPN.
“Sometimes the tensions are high. We want this team to get better and improve professionally. Robin van Persie is part of the team and we all want to get better.”
Fenerbahçe lost their last league game 3-2 against Beşiktaş in the Istanbul derby but Van Persie did score four minutes after being substituted into the game with his first shot on target and hit the post late on.
Van Persie also scored with his first shot on target two minutes after being brought on in the 2-1 win against Bursaspor a fortnight ago.
The Dutch star is however, expected to start against Celtic after scoring in his last two games.
Van Persie has a total of four goals and one assist since leaving Manchester United over the summer transfer window.