Barnsley manager Davey revealed centre-half Souza had since apologized to his team-mates for his reaction after being dropped from the Tykes' starting line-up in Tuesday night's 3-1 win over Crystal Palace.
Davey said: "Dennis Souza was not in the starting XI on Tuesday night and chose not to be on the bench.
"We want all our players fighting from the same corner, but we dealt with it on the day and it is finished with now.
"It was surprising and you want players who are going to go into the trenches for you.
"That is the end of the story now and Dennis will be in the squad this weekend. He has apologised to the players."