The position of the United boss is under increasing scrutiny after a shocking performance in last Tuesday's 2-0 Champions League defeat by Olympiakos .
And Holland boss Van Gaal - also coveted by Tottenham - has now emerged as a serious contender for the Old Trafford hot seat.
Van Gaal, 62, could take the job, with Ajax manager De Boer as his assistant and anointed successor.
The pair are close with De Boer having played for Van Gaal at Ajax, Barca and during his first spell as Holland boss.
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball