Mackie suffered a double fracture in a clash with Gael Givet that saw both players carried off on stretchers in Blackburn's 1-0 FA Cup third-round victory over the Championship leaders at Ewood Park on Saturday.
QPR manager Neil Warnock labelled Diouf as "the gutter type", adding: "I was going to call him a sewer rat but that might be insulting to sewer rats."
And Mackie said Diouf's alleged behaviour as "repulsive", telling the Sun here on Monday: "I'm lying on the floor with a bad injury and even his team-mates were embarrassed by what Diouf was saying.
"There's no room for that in the game - and in my opinion he's an absolute disgrace.
"I'm trying hard not to think about Diouf. That's because when I do it makes me want to snap my cast off and run up there and find him.
"There's no place in football for the likes of Diouf. There's a line and he crossed it. Diouf was repulsive."