Mourinho dismissed interest from Galatasaray in the summer, suggesting it would be easier for them to hire him as manager than to buy Fellaini.
The move reaped instant rewards as the Belgian midfielder has been on of United's star performers of 2017-18 so far.
Speaking to turkish-football.com, club official Metin Albayrak stated that the 29-year-old is on their radar, with the Black Eagles eyeing a combative central midfielder to add to their ranks with the Turkish side flying high both domestically and in European competition.
"Fellaini is on our list, we have made efforts to sign him but not just him".
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"Reports in England claim we are interested in Fellaini because his brother has come to watch a couple of our games but I must be honest and say there is nothing concrete", he said.
"We are keeping tabs on several players".
Fellaini recently missed six games for United after limping out of his country's World Cup qualifying against Bosnia and Herzegovina in October.
Fellaini is asking for £2.1 million in damages, as his lawyers claim that the New Balance boots he wore as part of his endorsement deal caused him "loss of enjoyment, inconvenience and impact on performance".
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The GSR provides information for student-athletes who received athletics aid for any period of time during their freshman year. The school's overall rate was 89 percent, two points higher than the nationwide average of 87, which was also a record high.
"We want to make the signing for the winter transfer window or for the end of the season".
Fellaini can talk to foreign clubs from 1st January with the very real prospect of the Belgian leaving Old Trafford on a Bosman next summer.
However, Fellaini was spotted in Turkey last week, as a host of Super Lig clubs step up their pursuit.
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