Louis van Gaal has said Jose Mourinho hasn't called him to confirm or deny he's in talks with Manchester United.
Mourinho was an assistant for Van Gaal at Barcelona in the 1990s and the two have maintained a cordial relationship ever since.
"I wouldn't expect Jose Mourinho to call me about that. No. In the football world that doesn't happen. Nor will I ring him," Van Gaal told reporters. "If I did, then you think the stories are right and it is not like that. I am not thinking like that.
"In the past, I was chairman of the coaches federation in the Netherlands and we had a rule that you can never talk with a club without informing the present manager.
"But in football it's not usual that you speak with other managers like that.
"It wasn't a good rule, no! Sometimes it has been broken by people and by managers. It is always like that. It is not always an honest world."