Keane held a grudge against Haaland after coming off worse in a challenge between the two when the latter was at Leeds United in a game at Elland Road in 1997 - and stood over Keane afterwards.
A lot of people were shocked when they saw Keane's challenge on Haaland, as his connected above the knee - with some believing that Haaland was lucky not to have broken his leg.
In his new book, Keane said he did not regret the challenge which led to him being sent off in that particular game, but insists he didn't set out to injure his opponent.
Howey - who was in the City side that day - told Sky's Morning View programme: "There was talk about it before the game. There was talk about it in the dressing room, the players knew it, the fans knew it, the staff knew it, the referee knew it, we all knew it was coming.
"It wasn't a great tackle. He said he was going to do it, and he did it.
"If you look at the very first incident when Roy Keane hurt his knee, I think he's going to try and kick Alfe-Inge Haaland anyway and kind of hurts himself. I can see him being annoyed at the fact that Alfe-Inge Haaland stood over him but to hold that grudge for that length of time and just boiling and boiling up, and he knew he was going to do it.
"We knew we'd protect our player if absolute necessary but when we'd seen that, even we were shocked at how high that was, and how dangerous it was for Alfe and his career.
"I thought he broke his leg to be honest."
Haaland never played again after that game, and talk of this story has come about again because of the release of Keane's latest book 'Second Half'.
There was often talk that the challenge was pre-meditated as a way of settling a score in the eyes of the Irishman.