Louis van Gaal looks set to speak to Jose Mourinho over his claim that signing Luke Shaw would have "killed" Chelsea.
Former Saints starlet Shaw became the fourth-most expensive defender in history this summer when he signed for Manchester United for an initial fee of £27million.
Chelsea, who Shaw supported as a youngster, were interested in the 19-year-old, but Mourinho revealed he pulled out of a bid to sign the player due to his wage demands.
The Chelsea manager claimed Shaw's reported wages of around £100,000 a week were way too large for a player who only made his Premier League debut in November 2012.
"If we pay to a 19-year-old boy what we were being asked for, to sign Luke Shaw, we are dead," Mourinho was quoted as saying.
"We would have killed our stability with financial fair play and killed the stability in our dressing room, because when you pay that much to a 19-year-old kid - a good player, fantastic player - but when you pay that amount of money, the next day, we would have had players knocking on our door.
"They would have been saying, 'How is it possible I play 200 games for this club, won this and that, yet a 19-year-old comes here and gets more money than I get?'"
Van Gaal refused to get drawn into a public war of words with Mourinho - a former protege of his at Barcelona - but it appears he will discuss the matter privately with the Portuguese.
"I don't think I have to discuss things in the media, it's better to discuss it with Jose," he said.