The former Ajax manager is taking charge of his first campaign at Old Trafford and is still getting to know his squad. However, he has wasted no time in laying down the rules he wishes his players to abide by as the club gets ready to embark on a pre-season tour of Thailand and Australia later this month.
The 52-year-old is known as a strict disciplinarian, and during his time at Ajax was involved in the minor details of every player.
According to the Daily Mirror, he seeks to replicate that culture at Old Trafford and has told his players what he expects of them.
The new rules include the mantra that any player late to training or team meetings will be dropped without exception.
Drinking alcohol during a matchweek will also be banned. With United regularly set to play twice a week due to European commitment, this will essentially work as a blanket ban on alcohol across the season.
The Dutchman has also banned players from adopting their own personal chefs and wants all players to use the club canteen at Carrington as their main source for meals.
The coach has also made adjustments to the food menu available as one of his first moves, with fish and vegetables now more prominent at meal times.
At Man United, some players like Luke Shaw have publicly flaunted their hiring of private chefs in the past in a bid to enable them to commit to their own dietary choices.
However, Ten Hag has banned that and will instead give each player a unique food plan to meet their individual needs. The only difference is that the club will now control it.
Ten Hag is also wary of players keeping their weight in check and, as a result, BMIs will be checked every week.
Finally, he has requested that all player complaints are controlled by him, rather than player agents or other sources.
Over the past three seasons, dressing room leaks and player revolts were one of the main issues at the club, but Ten Hag is hoping to eradicate that from United.