City's 1-1 draw with Hull - their seventh in a row - has left Hughes on the brink with Guus Hiddink, Roberto Mancini and Jose Mourinho all in the frame to replace him.
Hughes's position has been under threat since the 3-3 draw with Burnley earlier this month.
Al Mubarek flew in from Abu Dhabi yesterday morning and will report back to owner Sheikh Mansour.
Mansour will now make a decision on his manager's future, possibly at the end of a week in which they face Arsenal in the Carling Cup and Chelsea next Saturday.
They may only have lost once in the league this season - to Manchester United at Old Trafford - but City's recent run of results have left Hughes in jeopardy.
Draws against the likes of Fulham, Birmingham, Burnley and now Hull look to have sealed the manager's fate.
Russia's unexpected World Cup play-off exit has put former Chelsea boss, Hiddink, on the market and his presence casts a huge shadow over Hughes.
But chairman Khladoon is also friends with Italian Mancini and sources claim his track record at Inter Milan where he won Serie A three years in a row has left him as a serious contender for the City job.
Former Stamford Bridge boss Mourinho is also keen on a return to the Prem.
Hughes admitted he was under pressure to get results having spent £200million in the transfer market but claimed the club's Arab owners were willing to be patient.
That patience, however, is close to expiring and poor results against Arsenal in midweek and Chelsea next Saturday seem certain to seal his fate.
SACK HIM SACK HIM
nooooooooooooooooooo not Hiddink!
Hughes is a terrible manager. From the way Man C play on the field, there is no strategy, no training set plays, nothing.
Just a bunch of highly paid stars mostly showing off their individual skills and hoping to string something up.
And Hughes does not have a winning mentality. Always contented with the mediocre scoreline, reminds me of Scolari's bo chup attitude. Maybe because the strikers are not in form, nowadays only depend on Wright-Phillips to score deflected goal, how sad is that
Plus their defence really sucks. All 4 defenders are prone to defensive errors and poor marking. The defensive midfielders are not much better. De Jong is average and Barry I think is quite lousy actually, especially in defence.
pls dont sack hughes!!! rafa first to go, then we can choose rykarrd. then Man city can proceed to sack, ya?
go for hiddinks.