The highly rated teenage shot-stopper featured for the Red Devils' youth team against Aston Villa, and will also have spells with three other Premier League clubs
The 15-year-old, who ran out for the Red Devils' Under-18 side against Aston Villa on Saturday, currently plies his trade for Sarpsborg but is the subject of major Premier League interest.
Haug believes his time with the Old Trafford outfit has been hugely rewarding, but will now spend three days with United's rivals City as he looks to secure a permanent deal.
"The experience has been fantastic," he told Sarpsborg Arbeiderblad.
"Here they care about real people to thrive, and everything is organised in the best way.
"We will be with City for three days now and later this year Arsenal awaits and then another stay at Everton where I have been before."