Louis van Gaal has been slammed over his treatment of assistant Ryan Giggs by former Holland striker Wim Kieft.
Giggs, who played a record 963 games for the Red Devils, was expected to Van Gaal's successor when the Dutch boss decides to step down at Old Trafford.
However, reports this morning claim that the Manchester United board are considering alternatives to Giggs including Bayern Munich maestro Pep Guardiola - and now Kieft has cast further doubt over Giggs' future by pointing out perceived flaws in his relationship with Van Gaal.
The ex-striker pinpointed Luke Shaw's horrific injury against PSV Eindhoven, and claimed the aftermath of that incident highlighted the fact that Giggs is being under-used. Kieft, now a television pundit, insisted that Van Gaal's treatment of his number two was 'unbelievable', after he left the former winger out of the process of replacing Shaw with Marcos Rojo during the 2-1 defeat.
He told Dutch TV: "No one in Holland could believe what we saw when United played PSV Eindhoven in the Champions League [last Tuesday]. When Luke Shaw was injured, they had eight minutes to prepare Marcos Rojo to come on as a substitute.
“How did they use that time? First of all, Frans Hoek comes out with a pack of papers and then has to put his glasses on to read instructions out to Rojo.
“Then Van Gaal’s other assistant, Albert Stuivenberg, goes and tells Rojo what to do. And finally, Van Gaal thinks, 'I better instruct him in my own words', so, he is, the third guy telling Rojo how to play.
“Ryan Giggs was nowhere to be seen, and he is the one man on Van Gaal’s coaching staff who has played more matches at top level than any of the other coaches and has major experience.
“It seems Van Gaal is relying too much on his Dutch staff – and we all saw the problems that caused when he did the same thing at Barcelona.”
All eyes will be on Van Gaal and Giggs when they take their places on the Manchester United bench for their showdown against Southampton later today.