As per The Sun’s report, tempers flared after substitute Boufal refused Hughes’ calls for him to warm up during Saints’ 3-2 home defeat to Chelsea earlier in March.
The alleged incident included Hughes throwing a water bottle across the home changing room while angrily confronting Boufal after the match.
The official line from the club was that Boufal was missing from those games due to illness, though it appears that is not the case.
Hughes has hinted at a few negative personalities in Saints’ locker room as the team finds itself locked in a relegation dogfight.
Speaking immediately after the Chelsea league defeat, he said: “I am getting to understand who are the guys who are going to help us and those who are not willing to put their bodies on the line.”
The Moroccan is now being linked with a move away from the club, with Leicester rumoured to be front-runners. It’s an easy link to make, given Foxes manager Claude Puel was the man who signed Boufal for Saints in the first place.