There will be a few players arriving later due to international commitments last month, but the majority of the squad are back in action.
The Red Devils will play their first pre-season fixture on Tuesday, July 12 in Bangkok against Liverpool.
It's not exactly an easy start for Dutchman Ten Hag as he goes up against Jurgen Klopp in what United fans hope will become a battle for silverware in the coming years.
After this clash, the Red Devils then head over to Australia, where they will play at the MCG twice (Melbourne Cricket Ground) and then in Perth.
Ten Hag's side will face fellow Premier League outfits Aston Villa and Crystal Palace while in Australia before playing Diego Simeone's Atletico Madrid in Oslo.
Ten Hag's first match at Old Trafford will be on Sunday, July 31 against Rayo Vallecano.
Overall, it looks like a good pre-season for the Red Devils and Ten Hag will get to try his team out against a couple of top sides.
Then it is straight down to business, as the Red Devils host Brighton on the opening weekend of the new Premier League campaign.
United then make the trip to Brentford the weekend after before facing Liverpool in the top-flight on August 20.
Manchester United pre-season 2022/23: How to watch?
Red Devils supporters can follow the action from overseas by tuning into MUTV.
There will be live coverage shown to subscribers, whilst there will also be matchday build-up and action on the Manchester United app.
Domestic broadcasting rights mean that supporters living in Thailand and Australia will not be able to follow coverage on MUTV.
But it is possible that some or all of the games in Thailand and Australia will be selected for national TV coverage.